Items tagged “cases”

5,342 results found
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Inferior gluteal neuropathy

Inferior gluteal neuropathy or inferior gluteal nerve injury can be the result of nerve compression or traction injury of the inferior gluteal nerve. Epidemiology Inferior gluteal nerve neuropathy like superior gluteal nerve neuropathy is rather uncommon and often associated with iatrogenic in...
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Scapula method

The scapula method is used to assess posterior humeral head subluxation in patients with glenohumeral osteoarthritis as part of the work-up for shoulder arthroplasty.  Method First, the scapular axis (medial border of the scapular body to center of the glenoid) is drawn on an axial image that ...
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Coronary microcirculation

The coronary microcirculation comprises several anatomically and functionally different coronary vascular compartments with a small diameter (<500 µm) that play a crucial role in the regulation of myocardial perfusion. Summary location: epicardium, myocardium, endocardium blood supply: epicar...
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Thyrolingual trunk

A thyrolingual trunk is an anatomical variant in which the superior thyroid artery and lingual artery share a common trunk 1. This is in contrast to the typical pattern of both vessels emerging independently from the external carotid artery. Other variations of origin include a linguofacial trun...
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Linguofacial trunk

A linguofacial trunk is a rare variation of the anterior branches of the external carotid artery. The lingual artery and facial artery share a common trunk rather than branching independently from the external carotid artery 1. Unlike the thyrolingual or thyrolinguofacial variations in which the...
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Thyrolinguofacial trunk

A thyrolinguofacial trunk is a very rare pattern of branching of the anterior branches of the external carotid artery. Rather than the facial artery, lingual artery, and superior thyroid artery having their own distinct origins, all three vessels originate from a common trunk of the external car...
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Crural fascia

The crural fascia or deep fascia of the lower leg is a thick connective tissue fascia that investing the muscles of the lower leg and dividing them into the four compartments of the lower leg 1,2: anterior compartment lateral or peroneal compartment deep posterior compartment superficial pos...
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Inferior lateral genicular artery

The inferior lateral genicular artery (ILGA) is the lateral counterpart of the inferior medial genicular artery and supplies the inferolateral structures of the knee and the patella. Summary location: knee origin: popliteal artery branches: cutaneous perforating branches supply: inferolater...
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Inferior medial genicular artery

The inferior medial genicular artery (IMGA) is the medial counterpart of the inferior lateral genicular artery and supplies the inferomedial structures of the knee including the medial tibial condyle and participates in the supply of the patella. Summary location: knee origin: popliteal arter...
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Auricular perichondritis

Auricular perichondritis, also known as perichondritis of the ear or pinna, is an infection or inflammation of the cartilage-bearing part of the external ear. Terminology The term perichondritis, strictly speaking, refers to inflammation involving the perichondrium. However, a distinction is o...
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Superior lateral genicular artery

The superior lateral genicular artery (SLGA) is the lateral counterpart of the superior medial genicular artery and supplies the superolateral structures of the knee and participates in the vascularization of the patella. Summary location: knee origin: popliteal artery branches: anterior and...
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Superior medial genicular artery

The superior medial genicular artery (SMGA) is the medial counterpart of the superior lateral genicular artery and participates in the supply of the superomedial structures of the knee and the vascularization of the patella. Summary location: knee origin: popliteal artery branches: anterior ...
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Carcinoma of the Littré glands

Carcinoma of the Littré glands is rare. The Littré (urethral) glands of the penis may be the origin of cancers of the penis, usually adenocarcinomas 1. Epidemiology There are only a few scattered case reports of true Littré gland malignancy, although it is probably under-reported due to the fa...
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Axial spondyloarthritis

Axial spondyloarthrititis (SpA) is a clinical subset of the seronegative spondyloarthritides that present primarily with back pain and morning stiffness. There is a long delay, on average 14 years, between symptoms onset and diagnosis 1. Epidemiology The prevalence of axial SpA is ~1% 1. Age o...
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Middle genicular artery

The middle genicular artery (MGA) is one of the arteries of the knee joint and is a major supplicant of the anterior and posterior cruciate ligaments. Summary location: knee origin: popliteal artery supply: cruciate ligaments Gross anatomy The middle genicular artery originates from the an...
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Vestibular paroxysmia

Vestibular paroxysmia describes a clinical syndrome of sudden and stereotyped episodes of vertigo-type symptoms which usually last for less than one minute, often attributed to being a nerve compression syndrome affecting the vestibular nerve. Epidemiology Vestibular paroxysmia most commonly m...
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Neonatal aortic thrombosis

Neonatal aortic thrombosis is a rare life-threatening condition that can affect neonates admitted to the neonatal intensive care unit (NICU). Epidemiology The incidence of neonatal aortic thrombosis is 0.2% of neonates admitted to the NICU. Risk factors umbilical arterial catheters (UAC): ~8...
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Lymphangiomatosis

Lymphangiomatosis is a rare mesenchymal disorder that is characterized by developmental "malformation" of multiple lymphatic channels (usually with dilatation). Terminology If lymphatic channels are purely dilated and not malformed the term lymphangiectasia is usually used. If lymphangiomatosi...
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Fluid-fluid levels in liver lesions

Fluid-fluid levels in liver lesions are a rare appearance of both benign and malignant conditions. Differential diagnosis benign complicated hepatic cyst 2 hepatic abscess 2 chronic hepatic hematoma 3 biliary cystadenoma 3 hepatic hemangioma (very rare) 2 malignant cystic/necrotic hepat...
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Clear cell papillary renal cell carcinoma

Clear cell papillary renal cell carcinoma is a subtype renal cell carcinoma. Epidemiology Generally uncommon but thought to be the fourth most common histologic type of renal cell carcinoma at the time of new classification (c. 2016) 1. Pathology This subtype is characterized by low-grade, c...