Materiały źródłowe

• #1 Fibromuscular Dysplasia: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/1161248-overview

  Fibromuscular dysplasia (FMD) is an angiopathy that affects medium-sized arteries predominantly in young women of childbearing age. Among patients with identified FMD, renal involvement occurs in 6075%, cerebrovascular involvement in 2530%, visceral involvement in 9%, and arteries of the limbs in about 5%. […] Routine laboratory investigations are usually nonproductive but may show renal impairment. […] A history of stroke or transient ischemic attack (TIA) in a young individual or a subarachnoid hemorrhage in a person of any age should prompt cerebrovascular imaging; such imaging is also indicated for any individual known to have FMD. […] Conventional angiography is standard for detecting FMD and its associated vascular lesions. […] The diagnosis of FMD should be considered in any young individual presenting with a stroke or subarachnoid hemorrhage. […] Cerebral angiography is the investigation of choice to detect not only FMD but also arterial dissection, vasculitis, and aneurysms, which are other major etiologies of stroke in this population.

• #2 Fibromuscular dysplasia | Radiology Reference Article | Radiopaedia.org

  https://radiopaedia.org/articles/fibromuscular-dysplasia-1?lang=us

  Fibromuscular dysplasia (FMD) is a heterogeneous group of vascular lesions characterized by idiopathic, non-inflammatory, and non-atherosclerotic angiopathy of small and medium-sized arteries. […] The prevalence is unknown. It is most common in young women with a female to male ratio of 3:1, and is typically diagnosed between the ages of 30 and 50. […] Fibromuscular dysplasia is frequently asymptomatic. Symptomatic patients commonly present with hypertension, or less commonly renal impairment, due to renal artery stenosis. […] Arterial imaging with CT angiography, MR angiography and digital subtraction angiography (DSA) may be used to visualize the lesions in fibromuscular dysplasia. […] Selective DSA is the gold standard because it allows the visualization of small or peripheral lesions. The characteristic finding, particularly in the more common medial subtype, is alternating stenoses and dilatations, causing a string of beads appearance. […] Asymptomatic cases are only observed but if symptomatic then fibromuscular dysplasia responds well to angioplasty, with high long-term patency rates.

• #3 Fibromuscular dysplasia – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fibromuscular-dysplasia/diagnosis-treatment/drc-20352150

  A member of your health care team examines you and asks questions about your family and medical history. A device called a stethoscope is used to listen to blood flow through the arteries in the neck and belly area. If you have fibromuscular dysplasia, the provider might hear an irregular sound due to narrowed arteries. […] If someone in your family has or had fibromuscular dysplasia, you may need tests to check for it even if you don’t have symptoms. […] Tests to diagnose fibromuscular dysplasia could include: […] Blood tests may be done to check for signs of other conditions that can narrow arteries. You may have your blood sugar and cholesterol levels checked. […] Duplex ultrasound. This imaging test can show if an artery is narrowed. It uses sound waves to create pictures of blood flow and the shape of blood vessels. During the test, a wand-like device is pressed to the skin over the affected area.

• #4 Fibromuscular Dysplasia: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/1161248-overview

  Fibromuscular dysplasia (FMD) is an angiopathy that affects medium-sized arteries predominantly in young women of childbearing age. Among patients with identified FMD, renal involvement occurs in 6075%, cerebrovascular involvement in 2530%, visceral involvement in 9%, and arteries of the limbs in about 5%. […] Routine laboratory investigations are usually nonproductive but may show renal impairment. […] A history of stroke or transient ischemic attack (TIA) in a young individual or a subarachnoid hemorrhage in a person of any age should prompt cerebrovascular imaging; such imaging is also indicated for any individual known to have FMD. […] Conventional angiography is standard for detecting FMD and its associated vascular lesions. […] The diagnosis of FMD should be considered in any young individual presenting with a stroke or subarachnoid hemorrhage. […] Cerebral angiography is the investigation of choice to detect not only FMD but also arterial dissection, vasculitis, and aneurysms, which are other major etiologies of stroke in this population.

• #5 Fibromuscular Dysplasia: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/1161248-overview

  Fibromuscular dysplasia (FMD) is an angiopathy that affects medium-sized arteries predominantly in young women of childbearing age. Among patients with identified FMD, renal involvement occurs in 6075%, cerebrovascular involvement in 2530%, visceral involvement in 9%, and arteries of the limbs in about 5%. […] Routine laboratory investigations are usually nonproductive but may show renal impairment. […] A history of stroke or transient ischemic attack (TIA) in a young individual or a subarachnoid hemorrhage in a person of any age should prompt cerebrovascular imaging; such imaging is also indicated for any individual known to have FMD. […] Conventional angiography is standard for detecting FMD and its associated vascular lesions. […] The diagnosis of FMD should be considered in any young individual presenting with a stroke or subarachnoid hemorrhage. […] Cerebral angiography is the investigation of choice to detect not only FMD but also arterial dissection, vasculitis, and aneurysms, which are other major etiologies of stroke in this population.

• #6 Fibromuscular Dysplasia: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/1161248-overview

  Fibromuscular dysplasia (FMD) is an angiopathy that affects medium-sized arteries predominantly in young women of childbearing age. Among patients with identified FMD, renal involvement occurs in 6075%, cerebrovascular involvement in 2530%, visceral involvement in 9%, and arteries of the limbs in about 5%. […] Routine laboratory investigations are usually nonproductive but may show renal impairment. […] A history of stroke or transient ischemic attack (TIA) in a young individual or a subarachnoid hemorrhage in a person of any age should prompt cerebrovascular imaging; such imaging is also indicated for any individual known to have FMD. […] Conventional angiography is standard for detecting FMD and its associated vascular lesions. […] The diagnosis of FMD should be considered in any young individual presenting with a stroke or subarachnoid hemorrhage. […] Cerebral angiography is the investigation of choice to detect not only FMD but also arterial dissection, vasculitis, and aneurysms, which are other major etiologies of stroke in this population.

• #7 Fibromuscular dysplasia – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fibromuscular-dysplasia/diagnosis-treatment/drc-20352150

  A member of your health care team examines you and asks questions about your family and medical history. A device called a stethoscope is used to listen to blood flow through the arteries in the neck and belly area. If you have fibromuscular dysplasia, the provider might hear an irregular sound due to narrowed arteries. […] If someone in your family has or had fibromuscular dysplasia, you may need tests to check for it even if you don’t have symptoms. […] Tests to diagnose fibromuscular dysplasia could include: […] Blood tests may be done to check for signs of other conditions that can narrow arteries. You may have your blood sugar and cholesterol levels checked. […] Duplex ultrasound. This imaging test can show if an artery is narrowed. It uses sound waves to create pictures of blood flow and the shape of blood vessels. During the test, a wand-like device is pressed to the skin over the affected area.

• #8 Fibromuscular dysplasia – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fibromuscular-dysplasia/diagnosis-treatment/drc-20352150

  A member of your health care team examines you and asks questions about your family and medical history. A device called a stethoscope is used to listen to blood flow through the arteries in the neck and belly area. If you have fibromuscular dysplasia, the provider might hear an irregular sound due to narrowed arteries. […] If someone in your family has or had fibromuscular dysplasia, you may need tests to check for it even if you don’t have symptoms. […] Tests to diagnose fibromuscular dysplasia could include: […] Blood tests may be done to check for signs of other conditions that can narrow arteries. You may have your blood sugar and cholesterol levels checked. […] Duplex ultrasound. This imaging test can show if an artery is narrowed. It uses sound waves to create pictures of blood flow and the shape of blood vessels. During the test, a wand-like device is pressed to the skin over the affected area.

• #9 Fibromuscular Dysplasia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK493204/

  Fibromuscular dysplasia (FMD) is a rare systemic vascular disease, affecting younger women and accounting for 10% to 20% of the cases of renal artery stenosis. […] Early diagnosis and treatment are important for a long-term prognosis. […] Vascular imaging is the primary modality to diagnose fibromuscular dysplasia (FMD). […] Duplex ultrasound revealing turbulence, tortuosity, elevated velocities, and resistive indices in the mid and distal artery are suggestive of FMD. […] Computed tomography angiography (CTA) is one of the best tools available to diagnose FMD. […] Magnetic resonance angiography (MRA) has comparable sensitivity and specificity to that of CTA but without the risk of radiation exposure and contrast nephropathy. […] Conventional angiography remains the gold standard to diagnose FMD and can also measure the pressure gradient across the stenotic lesions. […] Diagnosis is by classical string-of-beads” appearance on angiography.

• #10 Differential Diagnosis: Fibromuscular Dysplasia Vs. Atherosclerosis – Klarity Health Library

  https://my.klarity.health/differential-diagnosis-fibromuscular-dysplasia-vs-atherosclerosis/

  The diseases rarity has provided only a little evidence of the accuracy of the various diagnostic approaches for FMD, but currently, the standard methods used include non-invasive imaging techniques like: […] Catheter-based angiography: This minimally invasive procedure is the gold standard for diagnosing and treating renal FMD. It detects the typical string-of-beads appearance or stenosis in renal arteries and can also be used for cerebrovascular FMD […] […] Duplex ultrasound: This tool provides a valuable, non-invasive approach to diagnosing renal and carotid artery FMD but has some limitations in imaging branch arteries and aneurysms […] […] Computed tomographic angiography (CTA): CTA is another reliable method for assessing renal FMD, though with lower sensitivity for mild lesions, and arterial branches. It can also be used for carotid and vertebral arteries, particularly for detecting cerebral aneurysms but with limitations in subtler lesions […]

• #11

  https://journals.aboutscience.eu/index.php/gcnd/article/view/670

  Fibromuscular dysplasia (FMD) is a noninflammatory and nonatherosclerotic type of vascular stenosis that affects mainly the renal and carotid arteries. […] Considering that the string of beads appearance generally isn’t seen on duplex imaging of renal arteries, a peak systolic velocity of 285 cm/sec or a renal aortic ratio of 3.5 alone can be used in detecting 60% of renal artery stenosis. […] Catheter based angiography remains the most accurate imaging to diagnose and evaluate FMD.

• #12 Fibromuscular Dysplasia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK493204/

  Fibromuscular dysplasia (FMD) is a rare systemic vascular disease, affecting younger women and accounting for 10% to 20% of the cases of renal artery stenosis. […] Early diagnosis and treatment are important for a long-term prognosis. […] Vascular imaging is the primary modality to diagnose fibromuscular dysplasia (FMD). […] Duplex ultrasound revealing turbulence, tortuosity, elevated velocities, and resistive indices in the mid and distal artery are suggestive of FMD. […] Computed tomography angiography (CTA) is one of the best tools available to diagnose FMD. […] Magnetic resonance angiography (MRA) has comparable sensitivity and specificity to that of CTA but without the risk of radiation exposure and contrast nephropathy. […] Conventional angiography remains the gold standard to diagnose FMD and can also measure the pressure gradient across the stenotic lesions. […] Diagnosis is by classical string-of-beads” appearance on angiography.

• #13 Fibromuscular dysplasia – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fibromuscular-dysplasia/diagnosis-treatment/drc-20352150

  Angiogram. This is a commonly used test for fibromuscular dysplasia. A doctor inserts a thin tube called a catheter into an artery. The tube is moved until it reaches the area being examined. Dye is given into a vein. Then, X-rays are used to create pictures of the arteries. The dye helps the arteries show up more clearly on the X-ray images. […] CT angiogram. This test is done using a computerized tomography (CT) machine. It provides cross-sectional images of the body. It can show narrowing in the arteries, aneurysms and dissections. You lie on a narrow table, which slides through a doughnut-shaped scanner. Before the test starts, dye called contrast is given into a vein. The dye helps blood vessels show up more clearly on the images. […] Magnetic resonance (MR) angiogram. This test uses a magnetic field and radio waves to create images of the body. It can see if you have an aneurysm or artery tear. During the test, you lie on a narrow table that slides into a tubelike machine that’s open on both ends. Before the test starts, you might be given dye into a vein. The dye, called contrast, helps blood vessels show up more clearly on the test images. […] The most common form of fibromuscular dysplasia looks like a „string of beads” on imaging tests. Other forms of fibromuscular dysplasia may look smooth.

• #14 Sex and Gender Differences in Fibromuscular Dysplasia | USC Journal

  https://www.uscjournal.com/articles/sex-and-gender-differences-fibromuscular-dysplasia?language_content_entity=en

  The mainstay of FMD diagnosis is evidence of vascular bed involvement on imaging with non-invasive imaging modalities. […] The international consensus on FMD recommends CT angiography (CTA) as the first-line imaging modality in patients with suspected FMD due to its superior spatial resolution and visualization of small calcifications. […] Catheter-based angiography remains the gold standard imaging technique for diagnosing and evaluating the location and morphology of FMD. […] The pathogenesis of FMD continues to be poorly understood. […] Management of FMD is dependent on vascular bed involvement, severity, associated complications of aneurysms and dissections, and consideration of symptoms. […] Counseling is often the first step in treating patients with FMD. […] Medical therapy typically entails anti-hypertensive agents and antiplatelet therapy.

• #15 Fibromuscular Dysplasia: Diagnosis & Treatment

  https://www.medicoverhospitals.in/diseases/fibromuscular-dysplasia/

  Diagnosing FMD can be challenging due to its varied presentation and overlap with other vascular diseases. A combination of patient history, physical examination, and imaging studies is typically required. […] Several imaging modalities are used to diagnose FMD: […] Duplex Ultrasound: Often the first-line imaging technique, particularly for renal and carotid arteries. […] Computed Tomography Angiography (CTA): Provides detailed images of the blood vessels and can identify the characteristic „string of beads” appearance. […] Magnetic Resonance Angiography (MRA): Another non-invasive imaging option that offers high-resolution images of the vascular system. […] Catheter-Based Angiography: Considered the gold standard for diagnosing FMD, allowing for both diagnosis and potential therapeutic intervention. […] While no specific blood tests can diagnose FMD, laboratory tests may be used to rule out other conditions and assess kidney function, particularly in cases involving the renal arteries. […] Diagnosed using imaging techniques like angiography and ultrasound to detect abnormal artery narrowing.

• #16 Fibromuscular Dysplasia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK493204/

  Fibromuscular dysplasia (FMD) is a rare systemic vascular disease, affecting younger women and accounting for 10% to 20% of the cases of renal artery stenosis. […] Early diagnosis and treatment are important for a long-term prognosis. […] Vascular imaging is the primary modality to diagnose fibromuscular dysplasia (FMD). […] Duplex ultrasound revealing turbulence, tortuosity, elevated velocities, and resistive indices in the mid and distal artery are suggestive of FMD. […] Computed tomography angiography (CTA) is one of the best tools available to diagnose FMD. […] Magnetic resonance angiography (MRA) has comparable sensitivity and specificity to that of CTA but without the risk of radiation exposure and contrast nephropathy. […] Conventional angiography remains the gold standard to diagnose FMD and can also measure the pressure gradient across the stenotic lesions. […] Diagnosis is by classical string-of-beads” appearance on angiography.

• #17 Fibromuscular dysplasia – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fibromuscular-dysplasia/diagnosis-treatment/drc-20352150

  Angiogram. This is a commonly used test for fibromuscular dysplasia. A doctor inserts a thin tube called a catheter into an artery. The tube is moved until it reaches the area being examined. Dye is given into a vein. Then, X-rays are used to create pictures of the arteries. The dye helps the arteries show up more clearly on the X-ray images. […] CT angiogram. This test is done using a computerized tomography (CT) machine. It provides cross-sectional images of the body. It can show narrowing in the arteries, aneurysms and dissections. You lie on a narrow table, which slides through a doughnut-shaped scanner. Before the test starts, dye called contrast is given into a vein. The dye helps blood vessels show up more clearly on the images. […] Magnetic resonance (MR) angiogram. This test uses a magnetic field and radio waves to create images of the body. It can see if you have an aneurysm or artery tear. During the test, you lie on a narrow table that slides into a tubelike machine that’s open on both ends. Before the test starts, you might be given dye into a vein. The dye, called contrast, helps blood vessels show up more clearly on the test images. […] The most common form of fibromuscular dysplasia looks like a „string of beads” on imaging tests. Other forms of fibromuscular dysplasia may look smooth.

• #18 Differential Diagnosis: Fibromuscular Dysplasia Vs. Atherosclerosis – Klarity Health Library

  https://my.klarity.health/differential-diagnosis-fibromuscular-dysplasia-vs-atherosclerosis/

  Magnetic resonance angiography (MRA): MRA is a radion-free screening tool, suitable for younger patients and those who cannot receive intravenous contrast for CTA. It offers high sensitivity for the feature of FMD but also has limitations. […] Only an effective diagnosis using the appropriate imaging techniques can identify the exact arterial abnormalities and differentiate between FMD and atherosclerosis.

• #19 Fibromuscular dysplasia – Definition, Diagnosis and Treatment

  https://angiologist.com/fibromuscular-dysplasia/

  CT angiography – Computerized tomography angiography (i.e. CTA) is increasingly being used to scan for fibromuscular dysplasia. […] Magnetic resonance angiography (MRA) – MRA lacks the needed resolution for detection of small details, even with use of gadolinium. It is also a relatively slow and time consuming scan; patient movement might cause an artifact of beading. […] Angiography – Angiography is the “gold standard” for detection of fibromuscular dysplasia. It can detect lesions as small as 200-300 micrometers. […] Many patients with fibromuscular dysplasia are asymptomatic. But some patients have symptoms. Symptoms can be non-specific such as migraine headaches, elevated blood pressure or tinnitus. […] Fibromuscular dysplasia of the renal arteries is of particular interest because it is a cause of treatable reno-vascular hypertension and of renal function impairment (although renal failure is rare).

• #20 Fibromuscular Dysplasia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK493204/

  Fibromuscular dysplasia (FMD) is a rare systemic vascular disease, affecting younger women and accounting for 10% to 20% of the cases of renal artery stenosis. […] Early diagnosis and treatment are important for a long-term prognosis. […] Vascular imaging is the primary modality to diagnose fibromuscular dysplasia (FMD). […] Duplex ultrasound revealing turbulence, tortuosity, elevated velocities, and resistive indices in the mid and distal artery are suggestive of FMD. […] Computed tomography angiography (CTA) is one of the best tools available to diagnose FMD. […] Magnetic resonance angiography (MRA) has comparable sensitivity and specificity to that of CTA but without the risk of radiation exposure and contrast nephropathy. […] Conventional angiography remains the gold standard to diagnose FMD and can also measure the pressure gradient across the stenotic lesions. […] Diagnosis is by classical string-of-beads” appearance on angiography.

• #21 Fibromuscular dysplasia | Radiology Reference Article | Radiopaedia.org

  https://radiopaedia.org/articles/fibromuscular-dysplasia-1?lang=us

  Fibromuscular dysplasia (FMD) is a heterogeneous group of vascular lesions characterized by idiopathic, non-inflammatory, and non-atherosclerotic angiopathy of small and medium-sized arteries. […] The prevalence is unknown. It is most common in young women with a female to male ratio of 3:1, and is typically diagnosed between the ages of 30 and 50. […] Fibromuscular dysplasia is frequently asymptomatic. Symptomatic patients commonly present with hypertension, or less commonly renal impairment, due to renal artery stenosis. […] Arterial imaging with CT angiography, MR angiography and digital subtraction angiography (DSA) may be used to visualize the lesions in fibromuscular dysplasia. […] Selective DSA is the gold standard because it allows the visualization of small or peripheral lesions. The characteristic finding, particularly in the more common medial subtype, is alternating stenoses and dilatations, causing a string of beads appearance. […] Asymptomatic cases are only observed but if symptomatic then fibromuscular dysplasia responds well to angioplasty, with high long-term patency rates.

• #22 Fibromuscular dysplasia – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fibromuscular-dysplasia/diagnosis-treatment/drc-20352150

  Angiogram. This is a commonly used test for fibromuscular dysplasia. A doctor inserts a thin tube called a catheter into an artery. The tube is moved until it reaches the area being examined. Dye is given into a vein. Then, X-rays are used to create pictures of the arteries. The dye helps the arteries show up more clearly on the X-ray images. […] CT angiogram. This test is done using a computerized tomography (CT) machine. It provides cross-sectional images of the body. It can show narrowing in the arteries, aneurysms and dissections. You lie on a narrow table, which slides through a doughnut-shaped scanner. Before the test starts, dye called contrast is given into a vein. The dye helps blood vessels show up more clearly on the images. […] Magnetic resonance (MR) angiogram. This test uses a magnetic field and radio waves to create images of the body. It can see if you have an aneurysm or artery tear. During the test, you lie on a narrow table that slides into a tubelike machine that’s open on both ends. Before the test starts, you might be given dye into a vein. The dye, called contrast, helps blood vessels show up more clearly on the test images. […] The most common form of fibromuscular dysplasia looks like a „string of beads” on imaging tests. Other forms of fibromuscular dysplasia may look smooth.

• #23 Fibromuscular dysplasia: what the radiologist should know: a pictorial review | Insights into Imaging | Full Text

  https://insightsimaging.springeropen.com/articles/10.1007/s13244-015-0382-4

  Therefore, the mean delay from symptoms to diagnosis has been reported to be up to 4.1 years. […] The objective of this review is therefore to raise radiologists awareness of FMDs epidemiology, pathophysiology, clinical presentation, typical and atypical radiological aspects and possible complications. […] The string-of-beads aspect found in renal or cervico-encephalic locations on arteriography, CTA or MRA is highly suggestive of FMD. […] Another frequent finding suggestive of an FMD diagnosis is the presence of a web-like defect at the origin of the internal carotid artery. […] Thus, imaging of the renal arteries will help to establish the diagnosis. […] The opposite situation is also true, and performing imaging of the renal arteries is recommended in a patient presenting discrete but suggestive lesions in the cervico-encephalic arteries so as to confirm the diagnosis, and vice versa. […] Despite the improvements in non-invasive screening techniques, negative results do not exclude the diagnosis of FMD. […] Indeed, catheter-based angiography remains the gold standard imaging modality for renovascular FMD because of its unsurpassed spatial resolution (0.1 mm).

• #24 Fibromuscular Dysplasia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK493204/

  Fibromuscular dysplasia (FMD) is a rare systemic vascular disease, affecting younger women and accounting for 10% to 20% of the cases of renal artery stenosis. […] Early diagnosis and treatment are important for a long-term prognosis. […] Vascular imaging is the primary modality to diagnose fibromuscular dysplasia (FMD). […] Duplex ultrasound revealing turbulence, tortuosity, elevated velocities, and resistive indices in the mid and distal artery are suggestive of FMD. […] Computed tomography angiography (CTA) is one of the best tools available to diagnose FMD. […] Magnetic resonance angiography (MRA) has comparable sensitivity and specificity to that of CTA but without the risk of radiation exposure and contrast nephropathy. […] Conventional angiography remains the gold standard to diagnose FMD and can also measure the pressure gradient across the stenotic lesions. […] Diagnosis is by classical string-of-beads” appearance on angiography.

• #25 Diagnosis – Fibromuscular Dysplasia

  https://www.fmd-be.be/diagnosis/

  How is FMD diagnosed? Medical imaging is necessary to diagnose FMD. In case of symptoms suggestive of FMD, the recommended first-line imaging is CTA (Computed Tomographic Angiography) or MRA (MRI enhanced with contrast) if CTA is contraindicated. Duplex ultrasound as a first-line diagnostic test may be an alternative in specialized centres with a large experience. […] If the CTA or MRA doesnt confirm a diagnosis, but a high level of suspicion still exists, catheter- based angiography (where a tube catheter is inserted into the artery, usually via the groin, and a contrast agent is used to better visualize the interior of the artery) may be considered. […] The most typical radiological image seen (in 80-90% of cases) is a series of alternating stenosis and dilations that give the artery a string of beads appearance. This FMD subtype is classified as Multifocal FMD. Multifocal FMD lesions are most often seen in the mid- and distal (furthest from the aorta) segments of the artery. […] In 10-20% of FMD cases, one single, or several isolated stenosis may be seen. In this case the diagnoses of FMD can only be made once other possible causes of arterial narrowing such as atherosclerosis, or other rare, inflammatory or genetic diseases have been ruled out. This subtype is classified as Focal FMD. Focal FMD lesions can be seen across the whole length of the artery, but in the case of a proximal (closest to the aorta) lesion, it may be difficult to differentiate from a stenosis caused by atherosclerosis. […] Focal FMD is the form seen more commonly in children.

• #26 Fibromuscular dysplasia | Radiology Reference Article | Radiopaedia.org

  https://radiopaedia.org/articles/fibromuscular-dysplasia-1?lang=us

  Fibromuscular dysplasia (FMD) is a heterogeneous group of vascular lesions characterized by idiopathic, non-inflammatory, and non-atherosclerotic angiopathy of small and medium-sized arteries. […] The prevalence is unknown. It is most common in young women with a female to male ratio of 3:1, and is typically diagnosed between the ages of 30 and 50. […] Fibromuscular dysplasia is frequently asymptomatic. Symptomatic patients commonly present with hypertension, or less commonly renal impairment, due to renal artery stenosis. […] Arterial imaging with CT angiography, MR angiography and digital subtraction angiography (DSA) may be used to visualize the lesions in fibromuscular dysplasia. […] Selective DSA is the gold standard because it allows the visualization of small or peripheral lesions. The characteristic finding, particularly in the more common medial subtype, is alternating stenoses and dilatations, causing a string of beads appearance. […] Asymptomatic cases are only observed but if symptomatic then fibromuscular dysplasia responds well to angioplasty, with high long-term patency rates.

• #27 Diagnosis – Fibromuscular Dysplasia

  https://www.fmd-be.be/diagnosis/

  How is FMD diagnosed? Medical imaging is necessary to diagnose FMD. In case of symptoms suggestive of FMD, the recommended first-line imaging is CTA (Computed Tomographic Angiography) or MRA (MRI enhanced with contrast) if CTA is contraindicated. Duplex ultrasound as a first-line diagnostic test may be an alternative in specialized centres with a large experience. […] If the CTA or MRA doesnt confirm a diagnosis, but a high level of suspicion still exists, catheter- based angiography (where a tube catheter is inserted into the artery, usually via the groin, and a contrast agent is used to better visualize the interior of the artery) may be considered. […] The most typical radiological image seen (in 80-90% of cases) is a series of alternating stenosis and dilations that give the artery a string of beads appearance. This FMD subtype is classified as Multifocal FMD. Multifocal FMD lesions are most often seen in the mid- and distal (furthest from the aorta) segments of the artery. […] In 10-20% of FMD cases, one single, or several isolated stenosis may be seen. In this case the diagnoses of FMD can only be made once other possible causes of arterial narrowing such as atherosclerosis, or other rare, inflammatory or genetic diseases have been ruled out. This subtype is classified as Focal FMD. Focal FMD lesions can be seen across the whole length of the artery, but in the case of a proximal (closest to the aorta) lesion, it may be difficult to differentiate from a stenosis caused by atherosclerosis. […] Focal FMD is the form seen more commonly in children.

• #28 Diagnosis – Fibromuscular Dysplasia

  https://www.fmd-eu.com/what-is-fmd/diagnosis/

  The most typical radiological image seen (in 80-90% of cases) is a series of alternating stenosis and dilations that give the artery a string of beads appearance. This FMD subtype is classified as Multifocal FMD. Multifocal FMD lesions are most often seen in the mid- and distal (furthest from the aorta) segments of the artery. […] In 10-20% of FMD cases, one single, or several isolated stenosis may be seen. In this case the diagnoses of FMD can only be made once other possible causes of arterial narrowing such as atherosclerosis, or other rare, inflammatory or genetic diseases have been ruled out. This subtype is classified as Focal FMD. Focal FMD lesions can be seen across the whole length of the artery, but in the case of a proximal (closest to the aorta) lesion, it may be difficult to differentiate from a stenosis caused by atherosclerosis. […] Focal FMD is the form seen more commonly in children.

• #29 Fibromuscular dysplasia: what the radiologist should know: a pictorial review | Insights into Imaging | Full Text

  https://insightsimaging.springeropen.com/articles/10.1007/s13244-015-0382-4

  Therefore, the mean delay from symptoms to diagnosis has been reported to be up to 4.1 years. […] The objective of this review is therefore to raise radiologists awareness of FMDs epidemiology, pathophysiology, clinical presentation, typical and atypical radiological aspects and possible complications. […] The string-of-beads aspect found in renal or cervico-encephalic locations on arteriography, CTA or MRA is highly suggestive of FMD. […] Another frequent finding suggestive of an FMD diagnosis is the presence of a web-like defect at the origin of the internal carotid artery. […] Thus, imaging of the renal arteries will help to establish the diagnosis. […] The opposite situation is also true, and performing imaging of the renal arteries is recommended in a patient presenting discrete but suggestive lesions in the cervico-encephalic arteries so as to confirm the diagnosis, and vice versa. […] Despite the improvements in non-invasive screening techniques, negative results do not exclude the diagnosis of FMD. […] Indeed, catheter-based angiography remains the gold standard imaging modality for renovascular FMD because of its unsurpassed spatial resolution (0.1 mm).

• #30 Azthena logo with the word Azthena

  https://www.news-medical.net/news/20190117/First-international-consensus-on-the-diagnosis-and-management-of-fibromuscular-dysplasia.aspx

  The „First international consensus on the diagnosis and management of fibromuscular dysplasia” (FMD) has been published online first today in Vascular Medicine and the Journal of Hypertension. […] This comprehensive review of FMD provides a harmonization and update to two prior European and US scientific statements and covers pathophysiology, nomenclature, differential diagnosis, diagnostic evaluation, management, and longitudinal follow-up as well as the current status of FMD registries and FMD patient advocacy organizations around the world. […] At least one focal or multifocal arterial lesion on imaging is required to establish the diagnosis of FMD. The presence of aneurysm, dissection, or tortuosity alone is inadequate to establish the diagnosis. […] Regardless of initial site of vascular bed involvement, patients with FMD should undergo brain to pelvis imaging, at least once and usually with CTA or contrast-enhanced MRA, to identify other areas of FMD, as well as to screen for occult aneurysms and dissections. […] A standardized consensus-based protocol for renal angiography and angioplasty is proposed, which includes hemodynamic assessment of FMD lesions using translesional pressure gradient measurements.

• #31 Diagnosis – Fibromuscular Dysplasia

  https://www.fmd-eu.com/what-is-fmd/diagnosis/

  The most typical radiological image seen (in 80-90% of cases) is a series of alternating stenosis and dilations that give the artery a string of beads appearance. This FMD subtype is classified as Multifocal FMD. Multifocal FMD lesions are most often seen in the mid- and distal (furthest from the aorta) segments of the artery. […] In 10-20% of FMD cases, one single, or several isolated stenosis may be seen. In this case the diagnoses of FMD can only be made once other possible causes of arterial narrowing such as atherosclerosis, or other rare, inflammatory or genetic diseases have been ruled out. This subtype is classified as Focal FMD. Focal FMD lesions can be seen across the whole length of the artery, but in the case of a proximal (closest to the aorta) lesion, it may be difficult to differentiate from a stenosis caused by atherosclerosis. […] Focal FMD is the form seen more commonly in children.

• #32 Diagnosis – Fibromuscular Dysplasia

  https://www.fmd-be.be/diagnosis/

  How is FMD diagnosed? Medical imaging is necessary to diagnose FMD. In case of symptoms suggestive of FMD, the recommended first-line imaging is CTA (Computed Tomographic Angiography) or MRA (MRI enhanced with contrast) if CTA is contraindicated. Duplex ultrasound as a first-line diagnostic test may be an alternative in specialized centres with a large experience. […] If the CTA or MRA doesnt confirm a diagnosis, but a high level of suspicion still exists, catheter- based angiography (where a tube catheter is inserted into the artery, usually via the groin, and a contrast agent is used to better visualize the interior of the artery) may be considered. […] The most typical radiological image seen (in 80-90% of cases) is a series of alternating stenosis and dilations that give the artery a string of beads appearance. This FMD subtype is classified as Multifocal FMD. Multifocal FMD lesions are most often seen in the mid- and distal (furthest from the aorta) segments of the artery. […] In 10-20% of FMD cases, one single, or several isolated stenosis may be seen. In this case the diagnoses of FMD can only be made once other possible causes of arterial narrowing such as atherosclerosis, or other rare, inflammatory or genetic diseases have been ruled out. This subtype is classified as Focal FMD. Focal FMD lesions can be seen across the whole length of the artery, but in the case of a proximal (closest to the aorta) lesion, it may be difficult to differentiate from a stenosis caused by atherosclerosis. […] Focal FMD is the form seen more commonly in children.

• #33 Diagnosis – Fibromuscular Dysplasia

  https://www.fmd-eu.com/what-is-fmd/diagnosis/

  The most typical radiological image seen (in 80-90% of cases) is a series of alternating stenosis and dilations that give the artery a string of beads appearance. This FMD subtype is classified as Multifocal FMD. Multifocal FMD lesions are most often seen in the mid- and distal (furthest from the aorta) segments of the artery. […] In 10-20% of FMD cases, one single, or several isolated stenosis may be seen. In this case the diagnoses of FMD can only be made once other possible causes of arterial narrowing such as atherosclerosis, or other rare, inflammatory or genetic diseases have been ruled out. This subtype is classified as Focal FMD. Focal FMD lesions can be seen across the whole length of the artery, but in the case of a proximal (closest to the aorta) lesion, it may be difficult to differentiate from a stenosis caused by atherosclerosis. […] Focal FMD is the form seen more commonly in children.

• #34 Diagnosis – Fibromuscular Dysplasia

  https://www.fmd-be.be/diagnosis/

  How is FMD diagnosed? Medical imaging is necessary to diagnose FMD. In case of symptoms suggestive of FMD, the recommended first-line imaging is CTA (Computed Tomographic Angiography) or MRA (MRI enhanced with contrast) if CTA is contraindicated. Duplex ultrasound as a first-line diagnostic test may be an alternative in specialized centres with a large experience. […] If the CTA or MRA doesnt confirm a diagnosis, but a high level of suspicion still exists, catheter- based angiography (where a tube catheter is inserted into the artery, usually via the groin, and a contrast agent is used to better visualize the interior of the artery) may be considered. […] The most typical radiological image seen (in 80-90% of cases) is a series of alternating stenosis and dilations that give the artery a string of beads appearance. This FMD subtype is classified as Multifocal FMD. Multifocal FMD lesions are most often seen in the mid- and distal (furthest from the aorta) segments of the artery. […] In 10-20% of FMD cases, one single, or several isolated stenosis may be seen. In this case the diagnoses of FMD can only be made once other possible causes of arterial narrowing such as atherosclerosis, or other rare, inflammatory or genetic diseases have been ruled out. This subtype is classified as Focal FMD. Focal FMD lesions can be seen across the whole length of the artery, but in the case of a proximal (closest to the aorta) lesion, it may be difficult to differentiate from a stenosis caused by atherosclerosis. […] Focal FMD is the form seen more commonly in children.

• #35 Azthena logo with the word Azthena

  https://www.news-medical.net/news/20190117/First-international-consensus-on-the-diagnosis-and-management-of-fibromuscular-dysplasia.aspx

  The „First international consensus on the diagnosis and management of fibromuscular dysplasia” (FMD) has been published online first today in Vascular Medicine and the Journal of Hypertension. […] This comprehensive review of FMD provides a harmonization and update to two prior European and US scientific statements and covers pathophysiology, nomenclature, differential diagnosis, diagnostic evaluation, management, and longitudinal follow-up as well as the current status of FMD registries and FMD patient advocacy organizations around the world. […] At least one focal or multifocal arterial lesion on imaging is required to establish the diagnosis of FMD. The presence of aneurysm, dissection, or tortuosity alone is inadequate to establish the diagnosis. […] Regardless of initial site of vascular bed involvement, patients with FMD should undergo brain to pelvis imaging, at least once and usually with CTA or contrast-enhanced MRA, to identify other areas of FMD, as well as to screen for occult aneurysms and dissections. […] A standardized consensus-based protocol for renal angiography and angioplasty is proposed, which includes hemodynamic assessment of FMD lesions using translesional pressure gradient measurements.

• #36 Fibromuscular Dysplasia (FMD) – Rare Awareness Rare Education

  https://rareportal.org.au/rare-disease/fibromuscular-dysplasia-fmd/

  Diagnosis of Fibromuscular Dysplasia (FMD) involves use of an imaging test like an angiogram to visualise the morphology (appearance) of arteries. […] First International Consensus on the diagnosis and management of fibromuscular dysplasia has information about the consensus diagnosis of FMD the presence of at least one focal or multifocal arterial lesion is required for a FMD diagnosis. The presence of enlarged arteries (aneurysm), tearing of artery wall (dissection), or twisted or curved arteries (tortuosity) is not sufficient for a FMD diagnosis. This resource also provides information on differential diagnosis which is used to determine if the symptoms can be caused by other conditions.

• #37 Azthena logo with the word Azthena

  https://www.news-medical.net/news/20190117/First-international-consensus-on-the-diagnosis-and-management-of-fibromuscular-dysplasia.aspx

  The „First international consensus on the diagnosis and management of fibromuscular dysplasia” (FMD) has been published online first today in Vascular Medicine and the Journal of Hypertension. […] This comprehensive review of FMD provides a harmonization and update to two prior European and US scientific statements and covers pathophysiology, nomenclature, differential diagnosis, diagnostic evaluation, management, and longitudinal follow-up as well as the current status of FMD registries and FMD patient advocacy organizations around the world. […] At least one focal or multifocal arterial lesion on imaging is required to establish the diagnosis of FMD. The presence of aneurysm, dissection, or tortuosity alone is inadequate to establish the diagnosis. […] Regardless of initial site of vascular bed involvement, patients with FMD should undergo brain to pelvis imaging, at least once and usually with CTA or contrast-enhanced MRA, to identify other areas of FMD, as well as to screen for occult aneurysms and dissections. […] A standardized consensus-based protocol for renal angiography and angioplasty is proposed, which includes hemodynamic assessment of FMD lesions using translesional pressure gradient measurements.

• #38 Sex and Gender Differences in Fibromuscular Dysplasia | USC Journal

  https://www.uscjournal.com/articles/sex-and-gender-differences-fibromuscular-dysplasia?language_content_entity=en

  Fibromuscular dysplasia (FMD) is a non-atherosclerotic, non-inflammatory vascular disease that was once underrecognized and is significantly more prevalent in women than men. […] Diagnosis requires a high index of suspicion by the treating physician. Several imaging studies can assist with diagnosis, and treatment focuses on the monitoring of affected vessels and intervention only as needed. […] The mean age at diagnosis is 55.7 years, although patients may be affected at any age. […] The differential diagnosis for FMD is broad because there are numerous conditions that can cause hypertension and share imaging features with those of FMD. […] Although there are still no formal diagnostic criteria for FMD, the First International Consensus of FMD outlines suggestions for when to consider FMD as a leading diagnosis.

• #39 FIBROMUSCULAR DYSPLASIA AND ITS VASCULAR IMPLICATIONS WITHOUT NEUROLOGICAL FINDINGS: A CASE REPORT | Published in Journal of Contemporary Chiropractic

  https://journal.parker.edu/article/124973-fibromuscular-dysplasia-and-its-vascular-implications-without-neurological-findings-a-case-report

  To describe the management of a 35-year-old male with low back pain and radiculopathy, left lower extremity weakness, and fatigue with activity. […] CTA with runoff diagnosed showed the presence of renal fibromuscular dysplasia (FMD). […] The rarity of this condition leaves data sparse other than in national FMD registries. Enhanced awareness with case presentations will allow physicians to make early detection and diagnosis possible and prevent complications with patients and their families. […] FMD is a rare, idiopathic, non-atherosclerotic, and non-inflammatory vascular disorder characterized by abnormal cell growth within the walls of medium-sized arteries, leading to stenosis, aneurysm formation, tortuosity, or dissection. […] The differential diagnosis for these types of patients can be atherosclerotic stenosis, large vessel vasculitis, monogenic and inflammatory arterial disease, arterial spasms, Marfan syndrome, stenoses associated with Ehlers-Danlos and Williams syndromes, type 1 neurofibromatosis, and segmental arterial mediolysis.

• #40 FIBROMUSCULAR DYSPLASIA AND ITS VASCULAR IMPLICATIONS WITHOUT NEUROLOGICAL FINDINGS: A CASE REPORT | Published in Journal of Contemporary Chiropractic

  https://journal.parker.edu/article/124973-fibromuscular-dysplasia-and-its-vascular-implications-without-neurological-findings-a-case-report

  To describe the management of a 35-year-old male with low back pain and radiculopathy, left lower extremity weakness, and fatigue with activity. […] CTA with runoff diagnosed showed the presence of renal fibromuscular dysplasia (FMD). […] The rarity of this condition leaves data sparse other than in national FMD registries. Enhanced awareness with case presentations will allow physicians to make early detection and diagnosis possible and prevent complications with patients and their families. […] FMD is a rare, idiopathic, non-atherosclerotic, and non-inflammatory vascular disorder characterized by abnormal cell growth within the walls of medium-sized arteries, leading to stenosis, aneurysm formation, tortuosity, or dissection. […] The differential diagnosis for these types of patients can be atherosclerotic stenosis, large vessel vasculitis, monogenic and inflammatory arterial disease, arterial spasms, Marfan syndrome, stenoses associated with Ehlers-Danlos and Williams syndromes, type 1 neurofibromatosis, and segmental arterial mediolysis.

• #41 Differential Diagnosis: Fibromuscular Dysplasia Vs. Atherosclerosis – Klarity Health Library

  https://my.klarity.health/differential-diagnosis-fibromuscular-dysplasia-vs-atherosclerosis/

  The diseases rarity has provided only a little evidence of the accuracy of the various diagnostic approaches for FMD, but currently, the standard methods used include non-invasive imaging techniques like: […] Catheter-based angiography: This minimally invasive procedure is the gold standard for diagnosing and treating renal FMD. It detects the typical string-of-beads appearance or stenosis in renal arteries and can also be used for cerebrovascular FMD […] […] Duplex ultrasound: This tool provides a valuable, non-invasive approach to diagnosing renal and carotid artery FMD but has some limitations in imaging branch arteries and aneurysms […] […] Computed tomographic angiography (CTA): CTA is another reliable method for assessing renal FMD, though with lower sensitivity for mild lesions, and arterial branches. It can also be used for carotid and vertebral arteries, particularly for detecting cerebral aneurysms but with limitations in subtler lesions […]

• #42 Fibromuscular Dysplasia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK493204/

  Fibromuscular dysplasia (FMD) is a rare systemic vascular disease, affecting younger women and accounting for 10% to 20% of the cases of renal artery stenosis. […] Early diagnosis and treatment are important for a long-term prognosis. […] Vascular imaging is the primary modality to diagnose fibromuscular dysplasia (FMD). […] Duplex ultrasound revealing turbulence, tortuosity, elevated velocities, and resistive indices in the mid and distal artery are suggestive of FMD. […] Computed tomography angiography (CTA) is one of the best tools available to diagnose FMD. […] Magnetic resonance angiography (MRA) has comparable sensitivity and specificity to that of CTA but without the risk of radiation exposure and contrast nephropathy. […] Conventional angiography remains the gold standard to diagnose FMD and can also measure the pressure gradient across the stenotic lesions. […] Diagnosis is by classical string-of-beads” appearance on angiography.

• #43 Fibromuscular dysplasia – Definition, Diagnosis and Treatment

  https://angiologist.com/fibromuscular-dysplasia/

  CT angiography – Computerized tomography angiography (i.e. CTA) is increasingly being used to scan for fibromuscular dysplasia. […] Magnetic resonance angiography (MRA) – MRA lacks the needed resolution for detection of small details, even with use of gadolinium. It is also a relatively slow and time consuming scan; patient movement might cause an artifact of beading. […] Angiography – Angiography is the “gold standard” for detection of fibromuscular dysplasia. It can detect lesions as small as 200-300 micrometers. […] Many patients with fibromuscular dysplasia are asymptomatic. But some patients have symptoms. Symptoms can be non-specific such as migraine headaches, elevated blood pressure or tinnitus. […] Fibromuscular dysplasia of the renal arteries is of particular interest because it is a cause of treatable reno-vascular hypertension and of renal function impairment (although renal failure is rare).

• #44 Fibromuscular Dysplasia: Renewed Awareness and New Insights Regarding an Orphan Disease

  https://www.acc.org/latest-in-cardiology/articles/2015/02/27/08/54/fibromuscular-dysplasia-renewed-awareness-and-new-insights

  Fibromuscular dysplasia (FMD) is a non-atherosclerotic arterial disease that is due to abnormal cell growth (e.g., fibrosis) of the vessel wall. […] A major problem regarding the care of patients with FMD is the gap in time that exists between onset of symptoms and diagnosis. […] Noninvasive imaging is currently the primary method for diagnosing FMD, with catheter-based angiography serving as the gold standard. […] Recognition of the common presenting symptoms and thorough examination are essential to provide timely diagnoses to these patients. […] It is important to note that the severity of renal artery stenosis and hemodynamic significance of lesions cannot be determined based on angiography alone; translesional pressure gradients should be obtained before intervening and after angioplasty to confirm success.

• #45 Fibromuscular Dysplasia and Stroke

  https://practicalneurology.com/diseases-diagnoses/stroke/fibromuscular-dysplasia-and-stroke/31615/

  Fibromuscular dysplasia (FMD) is an idiopathic, noninflammatory, nonatherosclerotic vascular disease of small- to medium-sized arteries. […] Modern CT-angiography (CTA) and contrast-enhanced magnetic resonance angiography (MRA) have enhanced the radiographic characterization and diagnosis of FMD. […] Diagnosis and classification of FMD is based on angiographic appearance. Multifocal FMD accounts for 90% of cases and is characterized by a string-of-beads appearance representing alternating arterial dilation and constriction. Focal FMD accounts for 10% of cases and is characterized by a unifocal concentric or tubular smooth narrowing, most often in the middle and distal segments of the internal carotid artery and the V3-V4 segment of the vertebral arteries. […] No particular imaging modality is required for diagnosis but CTA or MRA are used most frequently. Digital subtraction arteriography (DSA) is the standard imaging for diagnosis, but is more invasive, particularly for people with FMD who may be higher risk for iatrogenic dissection.

• #46 Diagnosis, management, and future developments of fibromuscular dysplasia – PubMed

  https://pubmed.ncbi.nlm.nih.gov/21236620/

  Fibromuscular dysplasia (FMD) is a nonatherosclerotic noninflammatory vascular disease that primarily affects women from age 20 to 60, but may also occur in infants and children, men, and the elderly. […] FMD has been considered rare and thus is often underdiagnosed and poorly understood by many health care providers. […] There are, however, data to suggest that FMD is much more common than previously thought, perhaps affecting as many as 4% of adult women. […] FMD should be considered in the differential diagnosis of a young person with a cervical bruit; a „swishing” sound in the ear(s); transient ischemic attack, stroke, or dissection of an artery; or in individuals aged 35 years with onset hypertension. […] Treatment consists of antiplatelet therapy for asymptomatic individuals and percutaneous balloon angioplasty for patients with indications for intervention. […] Little new information has been published about FMD in the last 40 years. The recently instituted International Registry for Fibromuscular Dysplasia will remedy that situation and provide observational data on a large numbers of patients with FMD.

• #47 Fibromuscular Dysplasia: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/1161248-overview

  Fibromuscular dysplasia (FMD) is an angiopathy that affects medium-sized arteries predominantly in young women of childbearing age. Among patients with identified FMD, renal involvement occurs in 6075%, cerebrovascular involvement in 2530%, visceral involvement in 9%, and arteries of the limbs in about 5%. […] Routine laboratory investigations are usually nonproductive but may show renal impairment. […] A history of stroke or transient ischemic attack (TIA) in a young individual or a subarachnoid hemorrhage in a person of any age should prompt cerebrovascular imaging; such imaging is also indicated for any individual known to have FMD. […] Conventional angiography is standard for detecting FMD and its associated vascular lesions. […] The diagnosis of FMD should be considered in any young individual presenting with a stroke or subarachnoid hemorrhage. […] Cerebral angiography is the investigation of choice to detect not only FMD but also arterial dissection, vasculitis, and aneurysms, which are other major etiologies of stroke in this population.

• #48 Fibromuscular dysplasia | MedLink Neurology

  https://www.medlink.com/articles/fibromuscular-dysplasia

  Although the histologic correlates of fibromuscular dysplasia have been delineated, diagnosis is typically established based on angiographic appearance. […] Angiography remains the standard test in patients with suspected extracranial or intracranial arterial disease, including fibromuscular dysplasia. […] Conventional angiography or noninvasive studies (such as CT angiography or MR angiography) of the intracranial circulation should be performed in all patients with cervicocephalic fibromuscular dysplasia to rule out an intracranial aneurysm. […] MRI and MR angiography techniques can differentiate tubular fibromuscular dysplasia from arterial dissection or arterial hypoplasia.

• #49 Sex and Gender Differences in Fibromuscular Dysplasia | USC Journal

  https://www.uscjournal.com/articles/sex-and-gender-differences-fibromuscular-dysplasia?language_content_entity=en

  The question of whether family members of patients with FMD should be screened for the disease is a frequent one. […] At this time, it is not recommended to screen asymptomatic family members of patients with FMD. […] More investigation into the genetic and environmental causes of FMD as well as diagnosis and treatment are necessary and ongoing.

• #50 Fibromuscular dysplasia – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fibromuscular-dysplasia/diagnosis-treatment/drc-20352150

  A member of your health care team examines you and asks questions about your family and medical history. A device called a stethoscope is used to listen to blood flow through the arteries in the neck and belly area. If you have fibromuscular dysplasia, the provider might hear an irregular sound due to narrowed arteries. […] If someone in your family has or had fibromuscular dysplasia, you may need tests to check for it even if you don’t have symptoms. […] Tests to diagnose fibromuscular dysplasia could include: […] Blood tests may be done to check for signs of other conditions that can narrow arteries. You may have your blood sugar and cholesterol levels checked. […] Duplex ultrasound. This imaging test can show if an artery is narrowed. It uses sound waves to create pictures of blood flow and the shape of blood vessels. During the test, a wand-like device is pressed to the skin over the affected area.

• #51 Fibromuscular Dysplasia | Mount Sinai – New York

  https://www.mountsinai.org/care/surgery/services/vascular-surgery/conditions/arterial-conditions/fibromuscular-dysplasia

  A rare vascular disease, fibromuscular dysplasia (FMD) can affect any artery in your body. The condition is usually found by accident while doing an imaging test for something unrelated. […] To diagnose FMD, we start with a physical exam and a fasting blood test to check your blood sugar and cholesterol levels. We may also use imaging tests, such as: […] We use contrast dye with these imaging techniques: […] There is no known cure for FDM, but we can manage your symptoms. […] We also monitor you regularly. To make sure your condition remains stable, we may use ultrasound every 6 to 12 months. In addition, we will probably screen for aneurysms with a CT or MR angiogram.

• #52 Fibromuscular dysplasia: what the radiologist should know: a pictorial review | Insights into Imaging | Full Text

  https://insightsimaging.springeropen.com/articles/10.1007/s13244-015-0382-4

  Therefore, the mean delay from symptoms to diagnosis has been reported to be up to 4.1 years. […] The objective of this review is therefore to raise radiologists awareness of FMDs epidemiology, pathophysiology, clinical presentation, typical and atypical radiological aspects and possible complications. […] The string-of-beads aspect found in renal or cervico-encephalic locations on arteriography, CTA or MRA is highly suggestive of FMD. […] Another frequent finding suggestive of an FMD diagnosis is the presence of a web-like defect at the origin of the internal carotid artery. […] Thus, imaging of the renal arteries will help to establish the diagnosis. […] The opposite situation is also true, and performing imaging of the renal arteries is recommended in a patient presenting discrete but suggestive lesions in the cervico-encephalic arteries so as to confirm the diagnosis, and vice versa. […] Despite the improvements in non-invasive screening techniques, negative results do not exclude the diagnosis of FMD. […] Indeed, catheter-based angiography remains the gold standard imaging modality for renovascular FMD because of its unsurpassed spatial resolution (0.1 mm).

• #53 Fibromuscular Dysplasia: An Important Vasculitic Mimic

  https://www.jscimedcentral.com/jounal-article-info/Annals-of-Vascular-Medicine-and-Research/Fibromuscular-Dysplasia%3A-An–Important-Vasculitic-Mimic-10540

  The characteristic CTA findings include arterial irregularities or a beading appearance, focal stenosis, dissections and aneurysms. […] FMD can present in any vessel, however it most commonly involves the renal, eICA and vertebral arteries in a corresponding descending order of frequency. […] FMD has a high prevalence of multi-vessel involvement in up to 66% patients in literature and was present in all of our patients. […] It is therefore imperative for clinicians to be aware of FMD given the potential considerable delay in diagnosing this condition and the significant differences in management in comparison with that of its differential diagnoses.

• #54 Fibromuscular Dysplasia: Renewed Awareness and New Insights Regarding an Orphan Disease

  https://www.acc.org/latest-in-cardiology/articles/2015/02/27/08/54/fibromuscular-dysplasia-renewed-awareness-and-new-insights

  Ensuring that FMD patients receive imaging of multiple vascular beds to rule out diffuse involvement and occult aortic, visceral, or brain aneurysms is recommended. […] There is also a need for increased awareness of FMD and its symptoms to reduce the delay to diagnosis that currently exists so that FMD patients can receive quality care from providers familiar with this uncommon disease.

• #55 Bringing Awareness to an Under-Recognized Medical Conundrum – Fibromuscular dysplasia: state of the science and critical unanswered questions – Professional Heart Daily | American Heart Association

  https://professional.heart.org/en/science-news/fibromuscular-dysplasia-state-of-the-science-and-critical-unanswered-questions/Commentary

  Fibromuscular dysplasia (FMD) is a non-inflammatory, arterial disease that most often affects women less than 65 years of age. […] The clinical manifestations of FMD are most often related to the arterial bed involved and the underlying vascular pathology present. […] A variety of classification schemes for FMD have been proposed over the past 50 years, but most recently, the 2011 French and Belgian expert consensus panel suggested movement away from a histology based classification (since surgical specimens are rarely available) to a simplified, imaging-based categorization of FMD into the subtypes of multifocal, unifocal (<1 cm lesion), and tubular (>1 cm lesion). […] Olin et al. provide a very detailed review of the available literature on FMD, and a summary of the diagnostic, therapeutic, and surveillance strategies and differential diagnostic considerations, but, most importantly, the authors detail five common misconceptions and the clarifications regarding FMD, and challenge investigators interested in FMD to address 11 research priorities.

• #56 Bringing Awareness to an Under-Recognized Medical Conundrum – Fibromuscular dysplasia: state of the science and critical unanswered questions – Professional Heart Daily | American Heart Association

  https://professional.heart.org/en/science-news/fibromuscular-dysplasia-state-of-the-science-and-critical-unanswered-questions/Commentary

  The most common presentation for carotid FMD is transient ischemic attack (TIA) or stroke. Clarification – Although TIAs or stroke can occur with multifocal carotid FMD, carotid FMD is most commonly asymptomatic or associated with nonspecific symptoms such as headaches, dizziness, neck pain, lightheadedness, and/or pulsatile tinnitus. […] The top 11 research priorities for FMD as suggested by Olin et al. include determining the following: prevalence of FMD in the general population of women between the ages of 18-65 years; unique biological and genetic factors affecting the vascular distribution of FMD and the development of a stenosis versus an aneurysm versus a dissection; role of endogenous and exogenous hormones in the pathogenesis of FMD; best evidence-based and most cost-effective approach for screening patients with FMD identified in a single arterial distribution for the presence of FMD in another vascular bed; most valid Doppler criteria for the diagnosis of carotid and renal multifocal FMD; natural history of FMD in symptomatic and asymptomatic patients, including understanding disease progression, risk stratification for the interval development of vascular events, and patient prognosis; prevalence of cerebral aneurysms and rupture risk profile in patients with FMD; risk of pregnancy in patients with FMD; mechanism of headaches in patients with FMD and developing an effective algorithm for treatment and prevention of headaches; feasibility of a randomized clinical trial to evaluate the optimal therapy for primary and secondary TIA and stroke prevention in patients with cerebrovascular FMD; and feasibility of a randomized clinical trial comparing optimal medical therapy versus endovascular therapy for the treatment of hypertension in patients with renal artery FMD.

• #57 Sex and Gender Differences in Fibromuscular Dysplasia | USC Journal

  https://www.uscjournal.com/articles/sex-and-gender-differences-fibromuscular-dysplasia?language_content_entity=en

  The mainstay of FMD diagnosis is evidence of vascular bed involvement on imaging with non-invasive imaging modalities. […] The international consensus on FMD recommends CT angiography (CTA) as the first-line imaging modality in patients with suspected FMD due to its superior spatial resolution and visualization of small calcifications. […] Catheter-based angiography remains the gold standard imaging technique for diagnosing and evaluating the location and morphology of FMD. […] The pathogenesis of FMD continues to be poorly understood. […] Management of FMD is dependent on vascular bed involvement, severity, associated complications of aneurysms and dissections, and consideration of symptoms. […] Counseling is often the first step in treating patients with FMD. […] Medical therapy typically entails anti-hypertensive agents and antiplatelet therapy.

• #58 Azthena logo with the word Azthena

  https://www.news-medical.net/news/20190117/First-international-consensus-on-the-diagnosis-and-management-of-fibromuscular-dysplasia.aspx

  The „First international consensus on the diagnosis and management of fibromuscular dysplasia” (FMD) has been published online first today in Vascular Medicine and the Journal of Hypertension. […] This comprehensive review of FMD provides a harmonization and update to two prior European and US scientific statements and covers pathophysiology, nomenclature, differential diagnosis, diagnostic evaluation, management, and longitudinal follow-up as well as the current status of FMD registries and FMD patient advocacy organizations around the world. […] At least one focal or multifocal arterial lesion on imaging is required to establish the diagnosis of FMD. The presence of aneurysm, dissection, or tortuosity alone is inadequate to establish the diagnosis. […] Regardless of initial site of vascular bed involvement, patients with FMD should undergo brain to pelvis imaging, at least once and usually with CTA or contrast-enhanced MRA, to identify other areas of FMD, as well as to screen for occult aneurysms and dissections. […] A standardized consensus-based protocol for renal angiography and angioplasty is proposed, which includes hemodynamic assessment of FMD lesions using translesional pressure gradient measurements.

• #59 Fibromuscular Dysplasia | The University of Kansas Health System

  https://www.kansashealthsystem.com/care/conditions/fibromuscular-dysplasia

  Fibromuscular dysplasia diagnosis and screening […] To diagnose fibromuscular dysplasia, your doctor will take a complete medical history and perform a physical exam. Other tests your doctor may recommend include: catheter-based angiography, computerized tomography (CT) angiogram, magnetic resonance imaging (MRI), ultrasound. […] The University of Kansas Health Systems fibromuscular dysplasia care program involves collaboration among many specialties, including vascular medicine, cardiology, nephrology, neurology, vascular surgery and genetics. Our health system offers advanced diagnosis, treatment and long-term management of FMD.

• #60 UVA Health a Leader in Treating Fibromuscular Dysplasia

  https://www.uvaphysicianresource.com/fibromuscular-dysplasia/

  Fibromuscular dysplasia (FMD) is a serious condition that is often underdiagnosed and complex in management. UVA Health is one of only 15 U.S. healthcare centers with the requisite knowledge, skills, and infrastructure to treat FMD effectively. […] „Our team has some of the most sophisticated imaging modalities available, along with diagnostic imaging professionals who are highly adept at reading those images to make accurate diagnoses,” Taylor says. […] „FMD isn’t managed the same way that common cholesterol or plaque-related coronary or vascular conditions are,” Sharma adds. „We look at the entire vascular system to determine the best course of treatment based on the size and location of the aneurysm or dissection as well as the problems they are causing.” […] Because FMD is not commonly recognized and often misdiagnosed, the Fibromuscular Dysplasia Society of America established a patient registry to better understand the disease and its treatment. […] UVA Health is one of only 15 active sites participating in the program and the fourth-largest enrolling center.

• #61 Fibromuscular Dysplasia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK493204/

  Fibromuscular dysplasia (FMD) is a rare systemic vascular disease, affecting younger women and accounting for 10% to 20% of the cases of renal artery stenosis. […] Early diagnosis and treatment are important for a long-term prognosis. […] Vascular imaging is the primary modality to diagnose fibromuscular dysplasia (FMD). […] Duplex ultrasound revealing turbulence, tortuosity, elevated velocities, and resistive indices in the mid and distal artery are suggestive of FMD. […] Computed tomography angiography (CTA) is one of the best tools available to diagnose FMD. […] Magnetic resonance angiography (MRA) has comparable sensitivity and specificity to that of CTA but without the risk of radiation exposure and contrast nephropathy. […] Conventional angiography remains the gold standard to diagnose FMD and can also measure the pressure gradient across the stenotic lesions. […] Diagnosis is by classical string-of-beads” appearance on angiography.

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