Materiały źródłowe

• #1 Nipple Discharge – Gynecology and Obstetrics – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/gynecology-and-obstetrics/breast-disorders/nipple-discharge

  Nipple discharge can occur in women who are not pregnant or breastfeeding, especially during the reproductive years. Nipple discharge is not necessarily abnormal, even among postmenopausal women, although it is always abnormal in men. Spontaneous unilateral nipple discharge, regardless of color, is considered abnormal. […] Most frequently, nipple discharge has a benign cause (see table Some Causes of Nipple Discharge). Cancer (usually intraductal carcinoma or invasive ductal carcinoma) causes 10% of cases. The rest result from benign ductal disorders (eg, intraductal papilloma, mammary duct ectasia, fibrocystic changes), endocrine disorders (eg, pituitary tumor), liver disorders, breast abscesses or infections, or use of certain drugs. […] If a mass is present or discharge is guaiac-positive, even if bilateral, cancer must be considered.

• #1 Nipple discharge – UpToDate

  https://www.uptodate.com/contents/nipple-discharge

  Nipple discharge is the third most common breast-related complaint, after breast pain and breast mass. During their reproductive years, up to 80 percent of women will have an episode of nipple discharge. […] Most nipple discharge is of benign origin. The primary goals of evaluation and management are to differentiate patients with benign nipple discharge from those who have an underlying papilloma, high-risk lesion, or malignancy and to manage patients with underlying pathologic nipple discharge. […] The types of nipple discharge and how to evaluate and manage this common problem will be reviewed here. […] Nipple discharge is categorized as normal milk production (lactation), physiologic nipple discharge (galactorrhea), or pathologic (suspicious) nipple discharge based on the characteristics of presentation.

• #1 Nipple Discharge – Gynecology and Obstetrics – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/gynecology-and-obstetrics/breast-disorders/nipple-discharge

  Discharge that is bilateral and/or multiductal and guaiac-negative suggests an endocrine cause. […] Spontaneous, unilateral discharge requires diagnostic testing; this type of discharge may be cancer, particularly if it is bloody (or guaiac-positive). […] Presence of a breast mass, a bloody (or guaiac-positive) discharge, or history of an abnormality on a mammogram or an ultrasound scan requires follow-up with a surgeon who is experienced with breast disorders.

• #1 Galactorrhea – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/galactorrhea/diagnosis-treatment/drc-20350434

  It can be hard to find the cause of galactorrhea because there are so many possible reasons for it. […] Testing may involve: […] A physical exam. A healthcare professional may try to get some of the fluid from the nipple by gently squeezing the area around the nipple. This exam may include looking for breast lumps or other areas of thickened breast tissue. […] A blood test. This is to check the level of prolactin in your system. If your prolactin level is high, your healthcare professional may check your thyroid-stimulating hormone level, too. […] A pregnancy test. This is to rule out pregnancy as a cause of nipple discharge. […] Diagnostic mammography, ultrasound or both. You may have these imaging tests if your healthcare professional finds a breast lump or sees other breast or nipple changes during your physical exam.

• #1 Nipple Discharge – Clinical Methods – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK284/

  Nipple discharge is the passage of liquid material through the nipple either spontaneously or with manipulation of breast tissue. […] Important history to elicit from the patient is bilaterality or unilaterality of the discharge and association with other symptoms, such as mass, pain, skin or nipple changes. […] A systematic, thorough palpation of both breasts and axillary regions with nipple examination and expression of the discharge should always be conducted. Cytologic examination, occult blood testing, and Wright staining of the discharge are suggested. […] Discharge from the breast is an abnormal finding except in late pregnancy or the postpartum period. There are seven basic types of nipple discharge, each of which can be associated with specific clinical conditions. […] The most common cause of these discharges is intraductal papillomas, but fibrocystic disease, advanced duct ectasia, cancer of the breast, and vascular engorgement in near-term pregnancy can also be causative. […] Surgical exploration is mandatory in the group of patients with this type of discharge, even if cytologic and mammographic findings are negative.

• #1 Nipple Discharge – Radiology | UCLA Health

  https://www.uclahealth.org/departments/radiology/education/breast-imaging-teaching-resources/how-work-up-patient-with/nipple-discharge

  Nipple discharge is the third leading breast complaint after lumps and pain, with a prevalence of 5-10% in women. […] Characteristics of suspicious nipple discharge include unilateral/single pore, spontaneous, persistent, and clear, serous or bloody discharge. Any nipple discharge with an associated palpable abnormality or new nipple inversion should be considered suspicious. […] Nipple discharge is associated with a 5-23% risk of malignancy in women, typically DCIS. Any discharge in a man is suspicious and associated with breast cancer in 25-57% of cases. […] Mammography should always be used as the first line examination for evaluation of suspicious nipple discharge, however sensitivity is relatively low (20-25%). […] Ultrasound should always be obtained for evaluation of suspicious nipple discharge, and is relatively sensitive and specific when compared to mammography (56% and 75% respectively).

• #1 Evaluation of Nipple Discharge | Radiology Key

  https://radiologykey.com/evaluation-of-nipple-discharge/

  Clinical history and examination are important in order to triage who needs blood work (milky), reassurance (benign), or workup (worrisome). The first question to ask is how the patient noticed the discharge. This will tell you if it is spontaneous or expressible. You will also want to know the color and duration of the discharge, and whether it is unilateral or bilateral. Women should also be asked about medications that could explain milky discharge and whether there is any recent history of trauma. […] Mammography may reveal suspicious calcifications indicating DCIS as the cause, but is nearly always negative. Sometimes a solitary dilated duct will correlate with the offending duct. This finding is not very specific, although it becomes more suspicious if it is new or increasing, associated with concerning calcifications, or in a non-subareolar location.

• #1 Nipple Discharge Screening

  https://www.medscape.org/viewarticle/713539_7

  Mammography is recommended to any patient presenting with abnormal nipple discharge, although it has poor positive predictive value (16.7%). […] Owing to its low sensitivity (59%) in the diagnosis of malignant duct pathology, it has limited value as a screening method in the management of nipple discharge. […] Only half of the patients presenting with nipple discharge who were found to have cancer had an abnormal mammography. […] Breast ultrasonography is complementary to mammography, but as lesions could be in the ducts, this exam could be useful in many cases, such as in intraductal papillomas. […] It seems that magnetic resonance imaging (MRI) has a moderate sensitivity (75%), a low-to-moderate specificity (65%) and a low positive predictive value (60%) in the evaluation of nipple discharge.

• #1 Evaluation of Nipple Discharge | Radiology Key

  https://radiologykey.com/evaluation-of-nipple-discharge/

  Ultrasound can be very useful for evaluating ductal pathology. The location of the discharging orifice on the nipple can be helpful in guiding the ultrasonography (US) examination. For example, if the orifice is on the lateral aspect of the nipple, it is likely that the abnormal duct system will also be in the lateral breast. If there is a known trigger point—a specific site that elicits discharge on palpation—it can also be used to localize the abnormal duct system. If an intraductal mass is identified on a galactogram, US can be performed to see if the mass is amenable to wire localization using ultrasound guidance. However, US is poor in identifying peripheral intraductal masses, so if the US is negative, additional evaluation will be necessary.

• #1 Nipple Discharge – Radiology | UCLA Health

  https://www.uclahealth.org/departments/radiology/education/breast-imaging-teaching-resources/how-work-up-patient-with/nipple-discharge

  MRI with contrast is very sensitive and with a high negative predictive value, however there is a high false positive rate. […] Galactography or ductography had previously been considered the gold standard for evaluation of nipple discharge, however in recent years this modality is falling out of favor, as there are several disadvantages, such as difficulty with duct catheterization resulting in procedure failure, and procedural risks including contrast extravasation, iodinated contrast allergy, and mastitis.

• #1 MRI for assessment of pathologic nipple discharge: is it mandatory? | Egyptian Journal of Radiology and Nuclear Medicine | Full Text

  https://ejrnm.springeropen.com/articles/10.1186/s43055-019-0105-9

  Benign breast lesions is the most common cause of nipple discharge; however, a rare but major cause is breast cancer. This study assesses the superadded value of MRI in diagnosing causes of pathologic nipple discharge. Ninety-three patients with pathologic nipple discharge were evaluated by sonomammography and DCE-MRI. […] Simply dilated ducts and presence of a mass on US examination as well as non-mass enhancement and STIR signal changes on MRI were of statistically significant probability in differentiation between benign and malignant causes of pathological nipple discharge (p value=0.017 and 0.001) and (p value 0.001). […] Magnetic resonance imaging is superior to sonommagraphy in diagnosis of pathologic nipple discharge and we recommend it in special situations. […] MRI is a valuable adjunctive means of detecting and diagnosing papillomas and malignancies especially invasive ductal carcinoma and ductal carcinoma in situ (DCIS), especially in cases when the other two modalities are normal.

• #1 An update on multimodal imaging strategies for nipple discharge: from detection to decision | Insights into Imaging | Full Text

  https://insightsimaging.springeropen.com/articles/10.1186/s13244-025-01947-1

  Effective management of nipple discharge requires recognising when imaging tests are needed and selecting the most appropriate diagnostic technique to rule out malignancy and avoid unnecessary interventions. […] First-line imaging for pathological nipple discharge (PND) assessment includes ultrasound and mammography. MRI is recommended for patients with PND and negative conventional imaging. A negative MRI is sufficient to justify surveillance rather than surgery. Contrast-enhanced mammography (CEM) is an alternative when MRI is unavailable or contraindicated. […] The first steps in assessing nipple discharge are a medical history and physical examination. In physiological nipple discharge (i.e., bilateral, multiductal, and non-spontaneous), breast imaging is unnecessary. However, for PND (i.e., unilateral, uniductal, and spontaneous), an initial imaging evaluation with FFDM and/or US is recommended, depending on the patients age and gender. For men aged 25 years and women aged 40 years, FFDM or DBT is the first-line imaging technique, usually complemented by US. For women aged 30 to 39 years, the initial imaging assessment is US, with the addition of FFDM/DBT if there are associated risk factors or findings suggesting malignancy on US. For men 25 years and women 30 years, the initial recommended technique is US. If the findings of conventional imaging are negative or inconclusive, further evaluation with MRI is recommended, while CEM is a valid method when MRI is contraindicated or unavailable. CEM may also play a useful role in the initial assessment of patients with PND, especially in men 25 years and women 40 years (instead of a FFDM/DBT), as it offers higher diagnostic accuracy and reduces the number of unnecessary benign biopsies. Galactography is recommended as a second-line alternative option to MRI.

• #1 Galactography is not an obsolete investigation in the evaluation of pathological nipple discharge | PLOS One

  https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0204326

  Galactography is not an obsolete investigation in the evaluation of pathological nipple discharge. […] To evaluate the malignancy rate and diagnostic performance of galactography in patients with pathological nipple discharge (PND) after negative clinical breast examination, mammography and ultrasound. […] The malignancy rate is negligible if clinical, mammography, ultrasound and galactography examinations are negative. Galactography remains a practical, valuable and cost-effective examination procedure. […] The probability of malignancy in patients with PND is low (2.7%) when CBE, mammography and ultrasound are all negative with respect to the cause of clinical symptoms. […] If galactography is technically unsuccessful, MRI should be considered as an additional ancillary tool to evaluate the possible etiology of the patients symptoms.

• #1 Galactorrhea – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/galactorrhea/diagnosis-treatment/drc-20350434

  MRI of the brain. This is to check for a tumor or other issue of your pituitary gland if your blood test shows a high prolactin level. […] Sometimes healthcare professionals can’t find an exact cause of galactorrhea. Then you may have treatment if your nipple discharge bothers you. A medicine that blocks the effects of prolactin or lowers your body’s prolactin level could help get rid of galactorrhea. […] For galactorrhea, possible questions to ask include: […] What tests might I need? […] Your healthcare professional may ask you questions, such as: […] What color is your nipple discharge? […] Does nipple discharge come from one or both breasts? […] Do you have other breast symptoms, such as a lump or area of thickening? […] What medications do you take? […] Until your appointment, follow these tips to deal with unwanted nipple discharge: […] Don’t handle your breasts. This can help to ease nipple discharge. For instance, don’t rub your nipples during sex. Don’t wear clothing that rubs on your nipples.

• #1 009134: Breast Discharge Cytology | Labcorp

  https://www.labcorp.com/tests/009134/breast-discharge-cytology

  Test Details […] Use […] Diagnose primary or metastatic malignant neoplasms; differential diagnosis of benign versus malignant processes; aid in the diagnosis of infectious and inflammatory disease […] Specimen […] Nipple discharge […] Collection Instructions […] Gently grip subareolar area and nipple with thumb and forefinger. When secretion occurs, allow pea-sized drop to accumulate on apex of nipple. Touch a clean slide to the nipple and withdraw quickly. Immediately spray slide with fixative or place slides in 95% ethyl alcohol. Repeat procedure until all secretions from nipple are collected on two or more slides. […] Diagnosis provided by: N/A

• #1 The diagnostic value of cytology in the mammary intraductal lesions of patients with pathological nipple discharge | Scientific Reports

  https://www.nature.com/articles/s41598-025-86533-7

  The cell types of liquid-based cytology of ductal lavage fluid was significantly more abundant than that of smear cytology, and the detection rate of tumor cells, atypia cells and atypical hyperplasia cells was significantly increased. […] Recent studies have shown that the cell samples in the ductal lavage fluid were fresh and sufficient, which provides a more reliable basis for the accuracy of cytological detection in diagnosing mammary intraductal lesions. […] The diagnostic value of smear cytology and liquid-based cytology of ductal lavage fluid in clinical diagnosis of intraductal lesions was evaluated by comparing the two methods with postoperative pathology to improve the early diagnosis rate of PND patients and their prognosis. […] The diagnostic accuracy of smear cytology was 41.33%, while liquid-based cytology of ductal lavage fluid achieved a higher accuracy rate of 58.67% (P<0.05).

• #1 Common Breast Problems | AAFP

  https://www.aafp.org/pubs/afp/issues/2012/0815/p343.html

  A palpable mass, mastalgia, and nipple discharge are common breast symptoms for which patients seek medical attention. […] The first step in the diagnostic workup for patients with nipple discharge is classification of the discharge as pathologic or physiologic. Nipple discharge is classified as pathologic if it is spontaneous, bloody, unilateral, or associated with a breast mass. Patients with pathologic discharge should be referred to a surgeon. […] Nipple discharge is classified as pathologic if it is spontaneous, unilateral, bloody, serous, clear, or associated with a mass. […] Mammography and subareolar ultrasonography should be performed in patients with nipple discharge that is unilateral, spontaneous, clear, serous, bloody, or associated with a mass. […] Those with pathologic discharge, even with normal imaging findings, should be referred to a surgeon for duct excision. […] Cytology of the nipple discharge is not recommended, because the absence of malignant cells does not exclude cancer.

• #1 Evaluation of Nipple Discharge | Radiology Key

  https://radiologykey.com/evaluation-of-nipple-discharge/

  Discharge that is bloody is concerning, but so is serous discharge. If the discharge is yellow or clear, the fluid can be checked for the presence of blood using a urine dipstick. A dipstick that turns green within the first 30 seconds indicates blood products and should be considered a true positive. If you look at the dipstick later, it will eventually turn green due to the lactoferrin that is normally secreted in breast fluid, which is a false positive. […] Worrisome discharge is due to an intraductal papilloma 90% of the time, but is due to ductal carcinoma in situ (DCIS) about 8% of the time. A single intraductal mass near the nipple is most likely to represent a papilloma; however, the imaging appearance is not definitive, and a tissue diagnosis is needed. Multiple intraductal masses are concerning for DCIS but may be due to papillomatosis or even debris. Trauma (e.g., injury due to a motor vehicle collision), core or surgical biopsy, and cyst aspiration are rare causes of bloody discharge. Occasionally, a cause is not identified.

• #1

  http://www.journalononcology.org/articles/joo-v3-1112.html

  Mammography, as the front-line clinical diagnostic imaging modality for breast disorders usually followed by sonography/ ultrasound, is still practically recommended as a crucial instrument of starting-point investigation and diagnosis for patients with PND to rule out the malignant possibility of breast lesions given that it has the medium relative radiation level (01-1 mSv) compared to other imaging modalities such as sonography and MRI without radiological absorption. […] The routine sonographic examination is a widespread technique in clinical imaging practice in the field of breast imaging, which is supplementary primarily to mammography, especially if the result of mammography is negative for patients with PND. […] Mammary ductoscopy is conventionally suggested and recommended for further investigation when mammogram and sonographic examination lacks the ability to diagnose the causative lesion or make a diagnostic conclusion of patients with PND even along with the therapeutic effectiveness for the treatment by laser ablation or mechanical clearance of intraductal lesions such as papillomas.

• #1

  http://www.journalononcology.org/articles/joo-v3-1112.html

  MRI has been mostly recommended in recent studies as an emerging and preferred diagnosis instrument for screening high-risk patients with PND or detecting the primary origin of carcinoma due to its strengths of being less invasive and no radiation especially when the findings of first-line imaging modalities of mammography and ultrasound are normal but the PND symptoms are not in resolution. […] Selecting the most suitable diagnostic methods is required for the best strategy for diagnosis and treatment. Referring the surgeon for surgical treatment has gained popularity for fewer residues of lesion removal and a more significant amount of contiguous samples collection via modernized Vacuum-Assisted Breast Biopsy (VABB) of ultrasound guidance via 8G or 11 G needle compared to 14 G and open conventional surgical incision to further diagnosis in histopathological examination in the reconfirmation of etiology and active measures for postoperative treatment if the detection is malignancy.

• #1 Nipple discharge – Knowledge @ AMBOSS

  https://www.amboss.com/us/knowledge/nipple-discharge/

  Nipple discharge can be physiological or pathological. Physiological discharge is typically bilateral, multiductal, with a milky appearance; causes include lactation and galactorrhea. Pathological discharge is typically unilateral, uniductal, nonmilky, and spontaneous. Although most causes of pathological nonmilky nipple discharge are benign (e.g., intraductal papilloma, mammary duct ectasia), malignancy is an important consideration. The diagnostic approach to nipple discharge is based on clinical evaluation findings, including characteristics of the discharge and patient age. Further evaluation with imaging is required for all patients with red flags in nipple discharge. Treatment depends on the underlying cause. […] Perform a focused clinical evaluation in all patients, including for red flags in nipple discharge. […] Biopsy is necessary if imaging findings are concerning for malignancy (e.g., BI-RADS 4 or 5). […] Treatment is based on the underlying cause; see Common causes of nipple discharge.

• #1 Workup and treatment of nipple discharge—a practical review – Stafford – Annals of Breast Surgery

  https://abs.amegroups.org/article/view/6921/html

  PND is a clinical diagnosis that warrants a thorough work-up, not only because of the risk of malignancy, but also because of the concern it causes patients. […] Mammography should be the initial study in women 40 years of age or older and men 25 years of age or older. […] Image-guided biopsy should be performed for any abnormal imaging findings. […] Patients with PND who should still undergo surgical excision include those with imaging abnormalities, a personal or family history of breast cancer, BRCA1/2 mutations, or PND that persists for over 2 years. […] By taking into account each patients unique history, imaging findings, risk factors, and personal preferences, we can safely tailor our treatment plan to better meet the needs of our patients. […] The risk of malignancy in patients who are evaluated surgically ranges from 5-23% of cases with predominantly ductal carcinoma in situ, but also invasive cancer.

• #1 Workup and treatment of nipple discharge—a practical review – Stafford – Annals of Breast Surgery

  https://abs.amegroups.org/article/view/6921/html

  Therefore, ruling out malignant lesions should be the primary aim in patients presenting with PND. […] Surgical intervention for PND is comprised of either total subareolar duct excision or selective duct excision of the affected duct. […] Surgical resection is no longer recommended in patients with PND, normal imaging (mammography, US, and MRI), and no other suspicious findings. […] For patients with copious nipple discharge, nipple discharge that causes discomfort, or nipple discharge that persists for more than two years even if imaging is negative, surgery should be considered.

• #1 Common Breast Problems | AAFP

  https://www.aafp.org/pubs/afp/issues/2019/0415/p505.html

  Nipple discharge is classified as pathologic if it is spontaneous, bloody, unilateral, or associated with a breast mass. […] Patients with pathologic discharge should undergo diagnostic imaging. […] Nipple discharge is a common symptom among women of reproductive age, with most women experiencing at least one episode. […] Although nipple discharge is predominantly physiologic or due to a benign etiology, an underlying malignancy is identified in up to 21% of patients with pathologic discharge who undergo biopsy. […] If discharge is deemed pathologic, age-appropriate diagnostic imaging with mammography and/or ultrasonography is indicated. […] Imaging results of BI-RADS 4 or 5 require tissue biopsy. […] For imaging results of BI-RADS 1 to 3, management options include duct excision or follow-up with physical examination after six months and repeat diagnostic imaging for one to two years or until discharge resolves. […] Duct excision, potentially localized by ultrasonography, magnetic resonance imaging, or ductography, is preferred to rule out malignancy.

• #1 Nipple discharge: current diagnostic and therapeutic approaches – PubMed

  https://pubmed.ncbi.nlm.nih.gov/11871863/

  Nipple discharge is a complex diagnostic challenge for the clinician. A variety of diseases (such as intraductal papillomas, mammary duct ectasia, breast cancer, pituitary adenomas, breast abscesses/infections, etc.) can manifest as nipple discharge. […] A detailed clinical evaluation is invaluable to determine the pathophysiology, assess the risk of malignancy, and plan treatment of the patient with nipple discharge. A combination of diagnostic tests, including mammography, breast ultrasonography, and possibly galactography can help the clinician to establish the diagnosis and plan proper management. […] Breast carcinoma associated with nipple discharge should be treated by either a modified radical mastectomy of breast-conservation therapy (i.e. duct-lobular segmentectomy with adequate, free margins [ideally1cm], levels I and II axillary lymph node dissection, followed by breast irradiation).

• #1 Nipple Discharge – Breast360.org

  https://breast360.org/topic/2017/01/01/nipple-discharge/

  Nipple discharge in a woman who is not pregnant or breastfeeding is not necessarily abnormal and can be caused by many factors but should be evaluated. […] Nipple discharge is considered suspicious when it is spontaneous (occurring without manipulation of the breast) and persistent, unilateral, coming from only one duct with fluid characterized as clear and colorless, bloody, or pale yellow and transparent. […] In women younger than age 40, appropriate follow-up for normal nipple discharge, which is nonspontaneous and leaking from multiple ducts, includes: Observation, Education to stop stimulation or manipulation of the breast(s), Instructions to report the development of any spontaneous suspicious nipple discharge. […] In women 40 years and older, evaluation of nipple discharge may include: Mammography, Education, similar to that of younger women, to stop stimulation or manipulation of the breast(s).

• #1

  https://www.radiologycases.com/index.php/radiologycases/article/view/1229

  Nipple discharge is a common breast complaint in women. Discharge in the post-operative patient for breast cancer is especially concerning, as these women are at higher risk for recurrent or new breast cancer. Galactography is a reliable method to evaluate nipple discharge, attempting to identify a mass that may cause the discharge within the duct of concern. […] In both cases, evaluation with galactography demonstrated a post-operative seroma that communicated with a native breast duct, causing nipple discharge. This presentation of a post-operative seroma is important to recognize by breast surgeons and breast imagers. Galactography can play an important role in the work up of these patients, demonstrating etiology of the nipple discharge with greater confidence than other imaging modalities.

• #1 Reddit – The heart of the internet

  https://www.reddit.com/r/breastcancer/comments/18jv852/was_nipple_discharge_a_symptom_that_should_have/

  I have been doing annual MRIs for the last 4 or so years bc of spontaneous nipple discharge from my right breast, where the mass was just removed. The discharge was never analyzed at a lab, and my breast surgeon had me go into these annual MRIs where I’ve had 1 other biopsy over the years (formerly benign), until this year’s MRI where I ultimately had another biopsy that came up cancerous. […] I asked my surgeon if the IDC could have been directly related to the discharge, and she told me that it was „impossible to tell because imaging would not have been able to show what was going on at the areolar level” or something along those lines. Has anyone else been in a similar situation/something was done earlier as an intervention when this symptom presented itself?

• #1 An update on multimodal imaging strategies for nipple discharge: from detection to decision | Insights into Imaging | Full Text

  https://insightsimaging.springeropen.com/articles/10.1186/s13244-025-01947-1

  Nipple discharge is a fairly common complaint in breast units. Cytology is not routinely recommended due to its high false-negative rate. When the discharge is unilateral, uniductal, persistent, and spontaneous, this condition is classified as PND, and breast imaging is mandatory to rule out malignancy. Although PND is usually caused by benign conditions, malignancy is detected in 3% to 23% of cases. The first-line imaging techniques are US or FFDM/DBT combined with US, depending on the patients age and gender. If these modalities yield negative findings, MRI is the preferred next step over galactography. Due to its high sensitivity and NPV, a negative MRI result is sufficient to justify surveillance rather than surgery. CEM can be a suitable alternative when MRI is contraindicated or unavailable. Ductoscopy is also a promising tool to identify patients who may benefit from surgery.

• #1 An update on multimodal imaging strategies for nipple discharge: from detection to decision | Insights into Imaging | Full Text

  https://insightsimaging.springeropen.com/articles/10.1186/s13244-025-01947-1

  Nipple discharge affects over 80% of women at some point in their lives, with malignancy detected in up to 23% of cases. This review highlights the shift from traditional surgical approaches to advanced imaging techniques, which enhance diagnostic accuracy and reduce unnecessary procedures. Diagnosis begins with a thorough medical history and physical examination to assess the need for imaging. Physiological nipple discharge, which is bilateral, multiductal, and non-spontaneous, typically requires no imaging. Conversely, pathological nipple discharge (PND), characteristically unilateral, uniductal, and spontaneous, requires imaging to rule out malignancy. Bloody PND is frequently associated with breast cancer, and up to 12% of non-bloody PND cases also involve malignancy. For women over 40 years, the first-line imaging modality is full-field digital mammography (FFDM) or digital breast tomosynthesis (DBT), usually combined with ultrasound (US). Men with PND undergo FFDM/DBT starting at age 25 years due to their higher risk of breast cancer. For women aged 30-39 years, US is the first assessment tool, with FFDM/DBT added, if necessary, while US is preferred for younger women and men. When initial imaging is negative or inconclusive, magnetic resonance imaging (MRI) is useful, often replacing galactography. With its high sensitivity and negative predictive value of almost 100%, a negative MRI can often obviate the need for surgery. Contrast-enhanced mammography (CEM) offers a viable alternative when MRI is not feasible. Although invasive, ductoscopy helps identify patients who may not require duct excision. This review consolidates the latest evidence and proposes an updated diagnostic algorithm for managing PND effectively.

• #1 Evaluating and managing the patient with nipple discharge | MDedge

  https://medauth2.mdedge.com/content/evaluating-and-managing-patient-nipple-discharge

  Dynamic contrast-enhanced magnetic resonance imaging (MRI) is the most sensitive imaging study for evaluating pathologic nipple discharge, and it has largely replaced ductography as an adjunct to mammography and ultrasonography. MRI’s sensitivity for detecting breast cancer ranges from 93% to 100%. […] No surgical evaluation or intervention is needed for physiologic nipple discharge. In the setting of pathologic discharge, however, referral to a breast surgeon may be indicated after appropriate imaging workup has been done. […] Nipple discharge can be classified as physiologic or pathologic. For pathologic discharge, a thorough physical examination should be performed with subsequent imaging evaluation. First-line tools, based on patient age, include diagnostic mammography and targeted ultrasonography. Contrast-enhanced MRI is then recommended for negative or equivocal cases. All patients with pathologic nipple discharge should be referred to a breast surgeon following appropriate imaging evaluation.

• #2 Nipple discharge – UpToDate

  https://www.uptodate.com/contents/nipple-discharge

  Nipple discharge is the third most common breast-related complaint, after breast pain and breast mass. During their reproductive years, up to 80 percent of women will have an episode of nipple discharge. […] Most nipple discharge is of benign origin. The primary goals of evaluation and management are to differentiate patients with benign nipple discharge from those who have an underlying papilloma, high-risk lesion, or malignancy and to manage patients with underlying pathologic nipple discharge. […] The types of nipple discharge and how to evaluate and manage this common problem will be reviewed here. […] Nipple discharge is categorized as normal milk production (lactation), physiologic nipple discharge (galactorrhea), or pathologic (suspicious) nipple discharge based on the characteristics of presentation.

• #2 Nipple discharge – UpToDate

  https://www.uptodate.com/contents/nipple-discharge/print

  Nipple discharge is the third most common breast-related complaint, after breast pain and breast mass. During their reproductive years, up to 80 percent of women will have an episode of nipple discharge. […] Most nipple discharge is of benign origin. The primary goals of evaluation and management are to differentiate patients with benign nipple discharge from those who have an underlying papilloma, high-risk lesion, or malignancy and to manage patients with underlying pathologic nipple discharge. […] Nipple discharge is categorized as normal milk production (lactation), physiologic nipple discharge (galactorrhea), or pathologic (suspicious) nipple discharge based on the characteristics of presentation.

• #2 Nipple discharge – Knowledge @ AMBOSS

  https://www.amboss.com/us/knowledge/nipple-discharge/

  Nipple discharge can be physiological or pathological. Physiological discharge is typically bilateral, multiductal, with a milky appearance; causes include lactation and galactorrhea. Pathological discharge is typically unilateral, uniductal, nonmilky, and spontaneous. Although most causes of pathological nonmilky nipple discharge are benign (e.g., intraductal papilloma, mammary duct ectasia), malignancy is an important consideration. The diagnostic approach to nipple discharge is based on clinical evaluation findings, including characteristics of the discharge and patient age. Further evaluation with imaging is required for all patients with red flags in nipple discharge. Treatment depends on the underlying cause. […] Perform a focused clinical evaluation in all patients, including for red flags in nipple discharge. […] Biopsy is necessary if imaging findings are concerning for malignancy (e.g., BI-RADS 4 or 5). […] Treatment is based on the underlying cause; see Common causes of nipple discharge.

• #2 Nipple Discharge – Clinical Methods – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK284/

  Nipple discharge is the passage of liquid material through the nipple either spontaneously or with manipulation of breast tissue. […] Important history to elicit from the patient is bilaterality or unilaterality of the discharge and association with other symptoms, such as mass, pain, skin or nipple changes. […] A systematic, thorough palpation of both breasts and axillary regions with nipple examination and expression of the discharge should always be conducted. Cytologic examination, occult blood testing, and Wright staining of the discharge are suggested. […] Discharge from the breast is an abnormal finding except in late pregnancy or the postpartum period. There are seven basic types of nipple discharge, each of which can be associated with specific clinical conditions. […] The most common cause of these discharges is intraductal papillomas, but fibrocystic disease, advanced duct ectasia, cancer of the breast, and vascular engorgement in near-term pregnancy can also be causative. […] Surgical exploration is mandatory in the group of patients with this type of discharge, even if cytologic and mammographic findings are negative.

• #2 Evaluating and managing the patient with nipple discharge | MDedge

  https://medauth2.mdedge.com/content/evaluating-and-managing-patient-nipple-discharge

  A 26-year-old African American woman presents with a 10-month history of left nipple discharge. The patient describes the discharge as spontaneous, colored dark brown to yellow, and occurring from a single opening in the nipple. The discharge is associated with left breast pain and fullness, without a palpable lump. The patient has no family or personal history of breast cancer. […] Nipple discharge is the third most common breast-related symptom (after palpable masses and breast pain), with an estimated prevalence of 5% to 8% among premenopausal women. While most causes of nipple discharge reflect benign issues, approximately 5% to 12% of breast cancers have nipple discharge as the only symptom. Not surprisingly, nipple discharge creates anxiety for both patients and clinicians. […] Nipple discharge can be characterized as physiologic or pathologic. The distinction is based on the patients history in conjunction with the clinical breast exam. Pathologic nipple discharge is defined as a spontaneous, bloody, clear, or single-duct discharge. A palpable mass in the same breast automatically increases the suspicion of the discharge, regardless of its color or spontaneity. The most common cause of pathologic nipple discharge is an intraductal papilloma, a benign epithelial tumor, which accounts for approximately 57% of cases.

• #2 An update on multimodal imaging strategies for nipple discharge: from detection to decision | Insights into Imaging | Full Text

  https://insightsimaging.springeropen.com/articles/10.1186/s13244-025-01947-1

  Effective management of nipple discharge requires recognising when imaging tests are needed and selecting the most appropriate diagnostic technique to rule out malignancy and avoid unnecessary interventions. […] First-line imaging for pathological nipple discharge (PND) assessment includes ultrasound and mammography. MRI is recommended for patients with PND and negative conventional imaging. A negative MRI is sufficient to justify surveillance rather than surgery. Contrast-enhanced mammography (CEM) is an alternative when MRI is unavailable or contraindicated. […] The first steps in assessing nipple discharge are a medical history and physical examination. In physiological nipple discharge (i.e., bilateral, multiductal, and non-spontaneous), breast imaging is unnecessary. However, for PND (i.e., unilateral, uniductal, and spontaneous), an initial imaging evaluation with FFDM and/or US is recommended, depending on the patients age and gender. For men aged 25 years and women aged 40 years, FFDM or DBT is the first-line imaging technique, usually complemented by US. For women aged 30 to 39 years, the initial imaging assessment is US, with the addition of FFDM/DBT if there are associated risk factors or findings suggesting malignancy on US. For men 25 years and women 30 years, the initial recommended technique is US. If the findings of conventional imaging are negative or inconclusive, further evaluation with MRI is recommended, while CEM is a valid method when MRI is contraindicated or unavailable. CEM may also play a useful role in the initial assessment of patients with PND, especially in men 25 years and women 40 years (instead of a FFDM/DBT), as it offers higher diagnostic accuracy and reduces the number of unnecessary benign biopsies. Galactography is recommended as a second-line alternative option to MRI.

• #2 Workup and treatment of nipple discharge—a practical review – Stafford – Annals of Breast Surgery

  https://abs.amegroups.org/article/view/6921/html

  PND is a clinical diagnosis that warrants a thorough work-up, not only because of the risk of malignancy, but also because of the concern it causes patients. […] Mammography should be the initial study in women 40 years of age or older and men 25 years of age or older. […] Image-guided biopsy should be performed for any abnormal imaging findings. […] Patients with PND who should still undergo surgical excision include those with imaging abnormalities, a personal or family history of breast cancer, BRCA1/2 mutations, or PND that persists for over 2 years. […] By taking into account each patients unique history, imaging findings, risk factors, and personal preferences, we can safely tailor our treatment plan to better meet the needs of our patients. […] The risk of malignancy in patients who are evaluated surgically ranges from 5-23% of cases with predominantly ductal carcinoma in situ, but also invasive cancer.

• #2 Evaluation of Nipple Discharge | Radiology Key

  https://radiologykey.com/evaluation-of-nipple-discharge/

  Clinical history and examination are important in order to triage who needs blood work (milky), reassurance (benign), or workup (worrisome). The first question to ask is how the patient noticed the discharge. This will tell you if it is spontaneous or expressible. You will also want to know the color and duration of the discharge, and whether it is unilateral or bilateral. Women should also be asked about medications that could explain milky discharge and whether there is any recent history of trauma. […] Mammography may reveal suspicious calcifications indicating DCIS as the cause, but is nearly always negative. Sometimes a solitary dilated duct will correlate with the offending duct. This finding is not very specific, although it becomes more suspicious if it is new or increasing, associated with concerning calcifications, or in a non-subareolar location.

• #2 Evaluation of Nipple Discharge | Radiology Key

  https://radiologykey.com/evaluation-of-nipple-discharge/

  Ultrasound can be very useful for evaluating ductal pathology. The location of the discharging orifice on the nipple can be helpful in guiding the ultrasonography (US) examination. For example, if the orifice is on the lateral aspect of the nipple, it is likely that the abnormal duct system will also be in the lateral breast. If there is a known trigger point—a specific site that elicits discharge on palpation—it can also be used to localize the abnormal duct system. If an intraductal mass is identified on a galactogram, US can be performed to see if the mass is amenable to wire localization using ultrasound guidance. However, US is poor in identifying peripheral intraductal masses, so if the US is negative, additional evaluation will be necessary.

• #2

  http://www.journalononcology.org/articles/joo-v3-1112.html

  Nowadays, the techniques for diagnosing the incurrence of PND focus on mammography, routine sonographic examination and Contrast-Enhanced Ultrasound (CEUS), mammary fiberoptic ductoscopy, and Magnetic Resonance Imaging (MRI) to find the most efficient and accurate diagnostic strategy for a better decision. […] Initial clinical evaluation of a thorough history inquiry and proper physical examination is required in all female patients who have suffered from non-lactational nipple discharge. The history inquiry has contained several factors related to prior medical conditions of patients with PND to define if there is a history or not that could have an impact on current clinical manifestations, while a physical examination is to examine the main parts from head and neck, torso and four limbs including blood routine examination to get a general realization for the general conditions of patients in case of any other incurrences. Apart from initial clinical evaluation, it starts from standard imaging diagnostic evaluation of conducting mammography to reveal physiological discharge or pathological discharge. Afterward, patients with PND will need further up-to-date and most commonly available imaging diagnostic investigation in a step-wise approach of sonographic examination, ductoscopy, and MRI to determine the explicit benign findings or malignancy suspect.

• #2 Nipple Discharge – Radiology | UCLA Health

  https://www.uclahealth.org/departments/radiology/education/breast-imaging-teaching-resources/how-work-up-patient-with/nipple-discharge

  MRI with contrast is very sensitive and with a high negative predictive value, however there is a high false positive rate. […] Galactography or ductography had previously been considered the gold standard for evaluation of nipple discharge, however in recent years this modality is falling out of favor, as there are several disadvantages, such as difficulty with duct catheterization resulting in procedure failure, and procedural risks including contrast extravasation, iodinated contrast allergy, and mastitis.

• #2 An update on multimodal imaging strategies for nipple discharge: from detection to decision | Insights into Imaging | Full Text

  https://insightsimaging.springeropen.com/articles/10.1186/s13244-025-01947-1

  Nipple discharge is a fairly common complaint in breast units. Cytology is not routinely recommended due to its high false-negative rate. When the discharge is unilateral, uniductal, persistent, and spontaneous, this condition is classified as PND, and breast imaging is mandatory to rule out malignancy. Although PND is usually caused by benign conditions, malignancy is detected in 3% to 23% of cases. The first-line imaging techniques are US or FFDM/DBT combined with US, depending on the patients age and gender. If these modalities yield negative findings, MRI is the preferred next step over galactography. Due to its high sensitivity and NPV, a negative MRI result is sufficient to justify surveillance rather than surgery. CEM can be a suitable alternative when MRI is contraindicated or unavailable. Ductoscopy is also a promising tool to identify patients who may benefit from surgery.

• #2 Galactography is not an obsolete investigation in the evaluation of pathological nipple discharge | PLOS One

  https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0204326

  Galactography is not an obsolete investigation in the evaluation of pathological nipple discharge. […] To evaluate the malignancy rate and diagnostic performance of galactography in patients with pathological nipple discharge (PND) after negative clinical breast examination, mammography and ultrasound. […] The malignancy rate is negligible if clinical, mammography, ultrasound and galactography examinations are negative. Galactography remains a practical, valuable and cost-effective examination procedure. […] The probability of malignancy in patients with PND is low (2.7%) when CBE, mammography and ultrasound are all negative with respect to the cause of clinical symptoms. […] If galactography is technically unsuccessful, MRI should be considered as an additional ancillary tool to evaluate the possible etiology of the patients symptoms.

• #2 Nipple Discharge – Gynecology and Obstetrics – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/gynecology-and-obstetrics/breast-disorders/nipple-discharge

  Discharge that is bilateral and/or multiductal and guaiac-negative suggests an endocrine cause. […] Spontaneous, unilateral discharge requires diagnostic testing; this type of discharge may be cancer, particularly if it is bloody (or guaiac-positive). […] Presence of a breast mass, a bloody (or guaiac-positive) discharge, or history of an abnormality on a mammogram or an ultrasound scan requires follow-up with a surgeon who is experienced with breast disorders.

• #2 Common Breast Problems | AAFP

  https://www.aafp.org/pubs/afp/issues/2012/0815/p343.html

  A palpable mass, mastalgia, and nipple discharge are common breast symptoms for which patients seek medical attention. […] The first step in the diagnostic workup for patients with nipple discharge is classification of the discharge as pathologic or physiologic. Nipple discharge is classified as pathologic if it is spontaneous, bloody, unilateral, or associated with a breast mass. Patients with pathologic discharge should be referred to a surgeon. […] Nipple discharge is classified as pathologic if it is spontaneous, unilateral, bloody, serous, clear, or associated with a mass. […] Mammography and subareolar ultrasonography should be performed in patients with nipple discharge that is unilateral, spontaneous, clear, serous, bloody, or associated with a mass. […] Those with pathologic discharge, even with normal imaging findings, should be referred to a surgeon for duct excision. […] Cytology of the nipple discharge is not recommended, because the absence of malignant cells does not exclude cancer.

• #2 Cytology, Nipple Discharge | OHSU

  https://www.ohsu.edu/lab-services/cytology-nipple-discharge

  Cytology, Nipple Discharge […] Collection: Soak nipple with warm saline in cotton or gauze for 10-15 minutes, then gently stroke subareolar area and nipple with thumb and forefinger. When liquid appears, allow drop to accumulate on apex of the nipple. Place drop on slide. With separate slide make unilayer smear. Place immediately in 95% ethyl alcohol (cytology fixative). Make four to six smears as the amount of specimen allows. Leave one slide out of fixative to air dry. If smears are prepared from both breasts, label each slide as left or right. Label all slides with patients name and medical record number. […] Patient Preparation: Nipple should be cleaned vigorously to remove loose skin cells. […] Additional Information: For patients with a palpable mass, needle aspiration is a more productive procedure. Mammography should also be performed.

• #2 The diagnostic value of cytology in the mammary intraductal lesions of patients with pathological nipple discharge | Scientific Reports

  https://www.nature.com/articles/s41598-025-86533-7

  In the diagnosis of intraductal malignant tumors, the accuracy of smear cytology was only 22.73%, significantly lower than the 68.18% accuracy achieved with liquid-based cytology of ductal lavage fluid (P<0.05). [...] Comprehensive analysis indicated that the accuracy of liquid-based cytology was higher than that of conventional smear cytology, and the sensitivity was significantly increased. [...] Therefore, it can be asserted that there are abundant cells in the duct lavage fluid samples for cytological examination and diagnosis, and repeated tests can be conducted to verify the diagnosis so that the diagnostic accuracy is significantly improved. [...] To sum up, for the early diagnosis of intraductal lesions in patients with PND, liquid-based cytology has a significant advantage when compared with conventional smear cytology.

• #2

  https://link.springer.com/article/10.1245/s10434-021-11070-2

  Nipple discharge is the third most frequent complaint of women attending rapid diagnostic breast clinics. Nipple smear cytology remains the single most used diagnostic method for investigating fluid content. This study aimed to conduct a systematic review and meta-analysis of the diagnostic accuracy of nipple discharge fluid assessment. […] The diagnostic accuracy of the meta-analysis examining nipple discharge fluid had a sensitivity of 75 % (95 % confidence interval [CI], 0.740.77) and a specificity of 87 % (95 % CI, 0.860.87) for benign breast disease. For breast cancer, it had a sensitivity of 62 % (95 % CI, 0.530.71) and a specificity 71 % (95 % CI, 0.570.81). […] Pooled data from studies encompassing nipple discharge fluid assessment suggest that nipple smear cytology is of limited diagnostic accuracy. The authors recommend that a tailored approach to diagnosis be required given the variable sensitivities of currently available tests.

• #2 Nipple Discharge Screening

  https://www.medscape.org/viewarticle/713539_7

  Cytology is the major complementary technique to clinical examination; it is a good approach to diagnosis in many cases. […] Duct endoscopy allows visualization of the breast ductal wall and sampling of the abnormal area for diagnostic purposes. […] Ductography (galactography) is probably useful in the evaluation of spontaneous discharge from the nipple of a nonlactating breast. […] Biopsy-excision of the pathological duct(s) should be performed if nipple discharge persists (pathological nipple discharge), or when it is bloody. […] Preoperative workup and imaging may not be suspicious in patients with single-duct pathological nipple discharge and underlying malignancy; therefore, microdochectomy should be considered in such cases.

• #2 Nipple discharge may indicate breast cancer

  https://memorialhospitalsgroup.com/oncology/blog/nipple-discharge-may-indicate-breast-cancer

  Nipple discharge may indicate breast cancer. […] Ductoscopy provides rapid diagnosis and treatment in nipple discharge, which can be a precursor of early-stage breast cancers. […] If there is a bloody or light-coloured discharge from a single breast, this may be a symptom of possible early-stage breast cancer. […] The probability of breast cancer in this type of discharge is between 5-10 percent. […] In general terms, nipple discharge can be divided into two as pathological and non-pathological. […] Every discharge should be evaluated with suspicion of cancer. […] In many patients with pathological nipple discharge, especially thanks to breast ductoscopy, it is possible to detect breast cancer originating from the canal in the early period. […] In patients with pathological nipple discharge, the underlying cause may be cancer at a rate of 5-10%. […] These cancers are general IN SITU CANCERS and these are the earliest stages of cancer.

• #2

  http://www.journalononcology.org/articles/joo-v3-1112.html

  The imaging techniques are essential in the early diagnosis and detection in patients of Pathological Nipple Discharge (PND) preoperatively. Surgical intervention for the treatment of a sonography-guided Vacuum Assist Breast Biopsy (VABB) for lesions removal and specimens offering is a therapeutic, surgical technique of high efficiency, safe desirability, and valuable practicality.

• #2 Common Breast Problems | AAFP

  https://www.aafp.org/pubs/afp/issues/2019/0415/p505.html

  Nipple discharge is classified as pathologic if it is spontaneous, bloody, unilateral, or associated with a breast mass. […] Patients with pathologic discharge should undergo diagnostic imaging. […] Nipple discharge is a common symptom among women of reproductive age, with most women experiencing at least one episode. […] Although nipple discharge is predominantly physiologic or due to a benign etiology, an underlying malignancy is identified in up to 21% of patients with pathologic discharge who undergo biopsy. […] If discharge is deemed pathologic, age-appropriate diagnostic imaging with mammography and/or ultrasonography is indicated. […] Imaging results of BI-RADS 4 or 5 require tissue biopsy. […] For imaging results of BI-RADS 1 to 3, management options include duct excision or follow-up with physical examination after six months and repeat diagnostic imaging for one to two years or until discharge resolves. […] Duct excision, potentially localized by ultrasonography, magnetic resonance imaging, or ductography, is preferred to rule out malignancy.

• #2 Workup and treatment of nipple discharge—a practical review – Stafford – Annals of Breast Surgery

  https://abs.amegroups.org/article/view/6921/html

  Therefore, ruling out malignant lesions should be the primary aim in patients presenting with PND. […] Surgical intervention for PND is comprised of either total subareolar duct excision or selective duct excision of the affected duct. […] Surgical resection is no longer recommended in patients with PND, normal imaging (mammography, US, and MRI), and no other suspicious findings. […] For patients with copious nipple discharge, nipple discharge that causes discomfort, or nipple discharge that persists for more than two years even if imaging is negative, surgery should be considered.

• #2 Nipple discharge: current diagnostic and therapeutic approaches – PubMed

  https://pubmed.ncbi.nlm.nih.gov/11871863/

  Nipple discharge is a complex diagnostic challenge for the clinician. A variety of diseases (such as intraductal papillomas, mammary duct ectasia, breast cancer, pituitary adenomas, breast abscesses/infections, etc.) can manifest as nipple discharge. […] A detailed clinical evaluation is invaluable to determine the pathophysiology, assess the risk of malignancy, and plan treatment of the patient with nipple discharge. A combination of diagnostic tests, including mammography, breast ultrasonography, and possibly galactography can help the clinician to establish the diagnosis and plan proper management. […] Breast carcinoma associated with nipple discharge should be treated by either a modified radical mastectomy of breast-conservation therapy (i.e. duct-lobular segmentectomy with adequate, free margins [ideally1cm], levels I and II axillary lymph node dissection, followed by breast irradiation).

• #2 Diagnosis and Management of Benign Breast Disorders | ACOG

  https://www.acog.org/clinical/clinical-guidance/practice-bulletin/articles/2016/06/diagnosis-and-management-of-benign-breast-disorders

  Fig. 3. Management of nipple discharge. Abbreviations: BI-RADS, Breast Imaging Reporting and Data System; hCG, human chorionic gonadotropin; TSH, thyroid-stimulating hormone. *See BSCR-4 and BSCR-10 in National Comprehensive Cancer Network. Breast cancer screening and diagnosis. Version 1.2015. NCCN Clinical Practice Guidelines in Oncology [after login]. Fort Washington (PA): NCCN; 2015. Available at: http://www.nccn.org/professionals/physician_gls/pdf/breast-screening.pdf . Retrieved February 23, 2016. Either ductography or magnetic resonance imaging can be performed to guide the excision. Excision is indicated for abnormal discharge even if ductography is negative. The National Comprehensive Cancer Network algorithm also includes an option for surveillance with 6-month follow-up and imaging for 12 years. Modified from Pearlman MD, Griffin JL. Benign breast disease. Obstet Gynecol 2010;116:74758 .

• #2 Nipple Discharge | Healthengine Blog

  https://healthinfo.healthengine.com.au/nipple-discharge

  Male breast cancer is very rare and makes up less than 1% of all breast cancers. The most common symptoms in men are a breast lump, followed by breast tenderness and nipple discharge. Diagnosing and treating breast cancer is similar in both men and women. However, in comparison to female breast cancer, nipple discharge in men is caused by cancer in 75% of cases. Therefore it is essential that a man experiencing any nipple discharge speaks to his doctor as soon as possible for testing.

• #2 Nipple Discharge – Radiology | UCLA Health

  https://www.uclahealth.org/departments/radiology/education/breast-imaging-teaching-resources/how-work-up-patient-with/nipple-discharge

  Nipple discharge is the third leading breast complaint after lumps and pain, with a prevalence of 5-10% in women. […] Characteristics of suspicious nipple discharge include unilateral/single pore, spontaneous, persistent, and clear, serous or bloody discharge. Any nipple discharge with an associated palpable abnormality or new nipple inversion should be considered suspicious. […] Nipple discharge is associated with a 5-23% risk of malignancy in women, typically DCIS. Any discharge in a man is suspicious and associated with breast cancer in 25-57% of cases. […] Mammography should always be used as the first line examination for evaluation of suspicious nipple discharge, however sensitivity is relatively low (20-25%). […] Ultrasound should always be obtained for evaluation of suspicious nipple discharge, and is relatively sensitive and specific when compared to mammography (56% and 75% respectively).

• #2 14. Is Nipple Discharge Breast Cancer? – Radiology Ltd.Radiology Ltd.OpenCloseShow SearchClose SearchCallRadiology Ltd.FacebookTwitterYouTube

  https://radltd.com/nipple-discharge-is-it-cancer/

  Nipple discharge is any fluid that comes out of the milk ducts through the nipple. […] Most nipple discharge is physiologic discharge and is NOT related to cancer. […] However, a small subset of nipple discharge may be related to a non-cancerous mass in the milk duct called a papilloma, or less likely, breast cancer. This type of discharge is referred to as pathologic discharge. […] No matter the type, all patients with nipple discharge should discuss their symptoms with their primary care provider. […] Many patients will be sent for imaging of the breast to further evaluate nipple discharge. […] For patients younger than 30 years, the patient will start with breast ultrasound where the technologist images right behind the nipple experiencing the discharge. […] For women between 30-39 years, a diagnostic mammogram of both breasts will be performed, followed by an ultrasound behind the nipple experiencing the discharge.

• #2 Reddit – The heart of the internet

  https://www.reddit.com/r/breastcancer/comments/18jv852/was_nipple_discharge_a_symptom_that_should_have/

  I have been doing annual MRIs for the last 4 or so years bc of spontaneous nipple discharge from my right breast, where the mass was just removed. The discharge was never analyzed at a lab, and my breast surgeon had me go into these annual MRIs where I’ve had 1 other biopsy over the years (formerly benign), until this year’s MRI where I ultimately had another biopsy that came up cancerous. […] I asked my surgeon if the IDC could have been directly related to the discharge, and she told me that it was „impossible to tell because imaging would not have been able to show what was going on at the areolar level” or something along those lines. Has anyone else been in a similar situation/something was done earlier as an intervention when this symptom presented itself?

• #2 Evaluating and managing the patient with nipple discharge | MDedge

  https://medauth2.mdedge.com/content/evaluating-and-managing-patient-nipple-discharge

  Dynamic contrast-enhanced magnetic resonance imaging (MRI) is the most sensitive imaging study for evaluating pathologic nipple discharge, and it has largely replaced ductography as an adjunct to mammography and ultrasonography. MRI’s sensitivity for detecting breast cancer ranges from 93% to 100%. […] No surgical evaluation or intervention is needed for physiologic nipple discharge. In the setting of pathologic discharge, however, referral to a breast surgeon may be indicated after appropriate imaging workup has been done. […] Nipple discharge can be classified as physiologic or pathologic. For pathologic discharge, a thorough physical examination should be performed with subsequent imaging evaluation. First-line tools, based on patient age, include diagnostic mammography and targeted ultrasonography. Contrast-enhanced MRI is then recommended for negative or equivocal cases. All patients with pathologic nipple discharge should be referred to a breast surgeon following appropriate imaging evaluation.

• #3 An update on multimodal imaging strategies for nipple discharge: from detection to decision | Insights into Imaging | Full Text

  https://insightsimaging.springeropen.com/articles/10.1186/s13244-025-01947-1

  Nipple discharge affects over 80% of women at some point in their lives, with malignancy detected in up to 23% of cases. This review highlights the shift from traditional surgical approaches to advanced imaging techniques, which enhance diagnostic accuracy and reduce unnecessary procedures. Diagnosis begins with a thorough medical history and physical examination to assess the need for imaging. Physiological nipple discharge, which is bilateral, multiductal, and non-spontaneous, typically requires no imaging. Conversely, pathological nipple discharge (PND), characteristically unilateral, uniductal, and spontaneous, requires imaging to rule out malignancy. Bloody PND is frequently associated with breast cancer, and up to 12% of non-bloody PND cases also involve malignancy. For women over 40 years, the first-line imaging modality is full-field digital mammography (FFDM) or digital breast tomosynthesis (DBT), usually combined with ultrasound (US). Men with PND undergo FFDM/DBT starting at age 25 years due to their higher risk of breast cancer. For women aged 30-39 years, US is the first assessment tool, with FFDM/DBT added, if necessary, while US is preferred for younger women and men. When initial imaging is negative or inconclusive, magnetic resonance imaging (MRI) is useful, often replacing galactography. With its high sensitivity and negative predictive value of almost 100%, a negative MRI can often obviate the need for surgery. Contrast-enhanced mammography (CEM) offers a viable alternative when MRI is not feasible. Although invasive, ductoscopy helps identify patients who may not require duct excision. This review consolidates the latest evidence and proposes an updated diagnostic algorithm for managing PND effectively.

• #3 Common Breast Problems | AAFP

  https://www.aafp.org/pubs/afp/issues/2012/0815/p343.html

  A palpable mass, mastalgia, and nipple discharge are common breast symptoms for which patients seek medical attention. […] The first step in the diagnostic workup for patients with nipple discharge is classification of the discharge as pathologic or physiologic. Nipple discharge is classified as pathologic if it is spontaneous, bloody, unilateral, or associated with a breast mass. Patients with pathologic discharge should be referred to a surgeon. […] Nipple discharge is classified as pathologic if it is spontaneous, unilateral, bloody, serous, clear, or associated with a mass. […] Mammography and subareolar ultrasonography should be performed in patients with nipple discharge that is unilateral, spontaneous, clear, serous, bloody, or associated with a mass. […] Those with pathologic discharge, even with normal imaging findings, should be referred to a surgeon for duct excision. […] Cytology of the nipple discharge is not recommended, because the absence of malignant cells does not exclude cancer.

• #3 Evaluating and managing the patient with nipple discharge | MDedge

  https://medauth2.mdedge.com/content/evaluating-and-managing-patient-nipple-discharge

  A 26-year-old African American woman presents with a 10-month history of left nipple discharge. The patient describes the discharge as spontaneous, colored dark brown to yellow, and occurring from a single opening in the nipple. The discharge is associated with left breast pain and fullness, without a palpable lump. The patient has no family or personal history of breast cancer. […] Nipple discharge is the third most common breast-related symptom (after palpable masses and breast pain), with an estimated prevalence of 5% to 8% among premenopausal women. While most causes of nipple discharge reflect benign issues, approximately 5% to 12% of breast cancers have nipple discharge as the only symptom. Not surprisingly, nipple discharge creates anxiety for both patients and clinicians. […] Nipple discharge can be characterized as physiologic or pathologic. The distinction is based on the patients history in conjunction with the clinical breast exam. Pathologic nipple discharge is defined as a spontaneous, bloody, clear, or single-duct discharge. A palpable mass in the same breast automatically increases the suspicion of the discharge, regardless of its color or spontaneity. The most common cause of pathologic nipple discharge is an intraductal papilloma, a benign epithelial tumor, which accounts for approximately 57% of cases.

• #3 Nipple Discharge Screening

  https://www.medscape.org/viewarticle/713539_7

  Mammography is recommended to any patient presenting with abnormal nipple discharge, although it has poor positive predictive value (16.7%). […] Owing to its low sensitivity (59%) in the diagnosis of malignant duct pathology, it has limited value as a screening method in the management of nipple discharge. […] Only half of the patients presenting with nipple discharge who were found to have cancer had an abnormal mammography. […] Breast ultrasonography is complementary to mammography, but as lesions could be in the ducts, this exam could be useful in many cases, such as in intraductal papillomas. […] It seems that magnetic resonance imaging (MRI) has a moderate sensitivity (75%), a low-to-moderate specificity (65%) and a low positive predictive value (60%) in the evaluation of nipple discharge.

• #3

  http://www.journalononcology.org/articles/joo-v3-1112.html

  Nowadays, the techniques for diagnosing the incurrence of PND focus on mammography, routine sonographic examination and Contrast-Enhanced Ultrasound (CEUS), mammary fiberoptic ductoscopy, and Magnetic Resonance Imaging (MRI) to find the most efficient and accurate diagnostic strategy for a better decision. […] Initial clinical evaluation of a thorough history inquiry and proper physical examination is required in all female patients who have suffered from non-lactational nipple discharge. The history inquiry has contained several factors related to prior medical conditions of patients with PND to define if there is a history or not that could have an impact on current clinical manifestations, while a physical examination is to examine the main parts from head and neck, torso and four limbs including blood routine examination to get a general realization for the general conditions of patients in case of any other incurrences. Apart from initial clinical evaluation, it starts from standard imaging diagnostic evaluation of conducting mammography to reveal physiological discharge or pathological discharge. Afterward, patients with PND will need further up-to-date and most commonly available imaging diagnostic investigation in a step-wise approach of sonographic examination, ductoscopy, and MRI to determine the explicit benign findings or malignancy suspect.

• #3

  http://www.journalononcology.org/articles/joo-v3-1112.html

  MRI has been mostly recommended in recent studies as an emerging and preferred diagnosis instrument for screening high-risk patients with PND or detecting the primary origin of carcinoma due to its strengths of being less invasive and no radiation especially when the findings of first-line imaging modalities of mammography and ultrasound are normal but the PND symptoms are not in resolution. […] Selecting the most suitable diagnostic methods is required for the best strategy for diagnosis and treatment. Referring the surgeon for surgical treatment has gained popularity for fewer residues of lesion removal and a more significant amount of contiguous samples collection via modernized Vacuum-Assisted Breast Biopsy (VABB) of ultrasound guidance via 8G or 11 G needle compared to 14 G and open conventional surgical incision to further diagnosis in histopathological examination in the reconfirmation of etiology and active measures for postoperative treatment if the detection is malignancy.

• #3 Evaluating and managing the patient with nipple discharge | MDedge

  https://medauth2.mdedge.com/content/evaluating-and-managing-patient-nipple-discharge

  Dynamic contrast-enhanced magnetic resonance imaging (MRI) is the most sensitive imaging study for evaluating pathologic nipple discharge, and it has largely replaced ductography as an adjunct to mammography and ultrasonography. MRI’s sensitivity for detecting breast cancer ranges from 93% to 100%. […] No surgical evaluation or intervention is needed for physiologic nipple discharge. In the setting of pathologic discharge, however, referral to a breast surgeon may be indicated after appropriate imaging workup has been done. […] Nipple discharge can be classified as physiologic or pathologic. For pathologic discharge, a thorough physical examination should be performed with subsequent imaging evaluation. First-line tools, based on patient age, include diagnostic mammography and targeted ultrasonography. Contrast-enhanced MRI is then recommended for negative or equivocal cases. All patients with pathologic nipple discharge should be referred to a breast surgeon following appropriate imaging evaluation.

• #3 Hormones and Breast Discharge: Causes of Different Colors

  https://www.verywellhealth.com/benign-nipple-discharge-430412

  Your provider will do some tests to figure out why you have nipple discharge. […] If breast cancer is a possibility, a breast MRI, ultrasound, biopsy, and a mammogram can be done. […] When hormones are causing nipple discharge, it’s typically part of a normal process in the body. […] If you’re having nipple discharge because of a hormone-related disorder, managing that condition will probably make the symptom better. […] Hormone-related health problems and medications can also cause nipple discharge.

• #3 Nipple Discharge

  https://fpnotebook.com/Gyn/Sx/NplDschrg.htm

  Bloody Nipple Discharge is NOT synonymous with cancer […] However bloody Nipple Discharge carries a higher risk of cancer […] Cytology (of Breast Discharge) is NOT recommended due to high False Negative Rate […] Breast Discharge culture and sensitivity is NOT recommended (not useful) […] Mammogram is the first-line study for pathologic Nipple Discharge in age 30 years […] Breast Ultrasound is the first-line study for pathologic Nipple Discharge in age 30 years […] Pathologic Nipple Discharge (Unilateral, single duct spontaneous Nipple Discharge) has a Breast Cancer risk of 10% […] Obtain breast Ultrasound and Mammogram […] Management for BI-RADS 1 to 3 involves surgically excising the involved ductal system and sending for pathology […] Management for BI-RADS 4 to 5 involves tissue biopsy.

• #3 New method for cytological evaluation using direct nipple discharge without aspiration | Scientific Reports

  https://www.nature.com/articles/s41598-025-88456-9

  Conventional smear cytology (CSC) is a specific method used for breast tumor diagnosis in patients with nipple discharge. However, CSC tends to miss diagnose or even misdiagnose due to contaminating blood cells and other impurities. […] Using nipple discharge collected directly from patients without aspiration, we performed liquid-based cytology (LBC) to analyze 111 collected samples for cytological evaluation for the first time. […] Our results showed LBC has better diagnostic sensitivity than CSC (40.00% vs. 22.22%, χ²=6.636, P=0.01). The specificity was improved (LBC 100% vs. CSC 95.2%) and area under the curve was also enhanced (AUCLBC=0.700 vs. AUCCSC=0.587). […] Therefore, LBC provides a new and better diagnostic method for early detection of breast tumors with nipple discharge.

• #3 Nipple Discharge | Healthengine Blog

  https://healthinfo.healthengine.com.au/nipple-discharge

  If the nipple discharge has been found to be due to a medication associated with increased milk production and secretion, discuss options of reducing or ceasing the medication with your doctor. The treatment of hypothyroidism usually involves thyroxine replacement. The treatment of hyperprolactinaemia as a result of a pituitary cancer may involve the use of dopamine agonists which usually decrease both the secretion and size of the tumour. If your doctor has not found any abnormality on both clinical examination and imaging, close observation is an option for people who wish to avoid surgical treatment. However, clinical follow-up is advised in 23 months for spontaneous discharges where clinical and imaging evaluation are negative. It is also advisable to continue with routine screening. […] Major duct excision can be offered to everyone who has suspicious discharge and to those who suffer from benign discharge that is persistent and bothersome. This would definitely rule out the presence of a cancer and cause the discharge to stop. Major duct excision is usually performed under local anaesthetic as an outpatient procedure. The affected duct may be identified before the operation via ductography. The surgeon would usually make a cut around the nipple. The surgeon would then remove most of the tissue at least 23 cm back from the nipple. Major duct excision involves removal of all or most of the subareolar (area deep to the nipple) ductal tissue.

• #3 Nipple Discharge: Causes and Treatment

  https://www.healthline.com/health/womens-health/nipple-discharge

  Nipple discharge is common and usually not serious, but it may be a symptom of an underlying condition. Its always a good idea to discuss any new discharge with a healthcare professional. […] Discharge is usually not serious. Still, it can be a sign of breast cancer, so its worth talking about with a doctor. […] The causes listed are only suggestions. If you notice nipple discharge of any color, you should contact a doctor for a proper diagnosis. […] Breast cancer can cause nipple discharge, especially ductal carcinoma in situ (DCIS), an early form of breast cancer that starts in the milk ducts. It can also happen with Pagets disease of the breast, a rare type of breast cancer that involves the nipple. […] If you do have breast cancer, the discharge will probably come from one breast only. You may have a lump in your breast, too.

• #3 Nipple discharge: Follow-up in operated versus non-operated patients – A single center experience

  https://www.oatext.com/nipple-discharge-follow-up-in-operated-versus-non-operated-patients-a-single-center-experience.php

  The prevalence of CIS (8%) and invasive cancer (2.5%) in this study is not differing from the prevalence otherwise described in the literature (5 to 15 %). […] Previous invasive cancer significantly increased the risk of invasive cancer/CIS as underlying cause of nipple discharge in both studies. […] This study fails to identify bloody nipple discharge as a risk factor for breast cancer development, but based on the vast literature in the area, a conclusion can be made based on the overall data available. Even if all of the above-mentioned examinations are inconspicuous, surgery probably should be offered patients with age above 50 years, presenting with recurrent bloody nipple. This is particularly important in case of previous breast cancer.

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