Items tagged “case3”

22 results found
Article

Normal facial nerve enhancement on MRI

The normal facial nerve (CN VII) can demonstrate some enhancement post gadolinium administration in up to 76% of examinations, and in ~70% of cases is asymmetric left-to-right. It has been attributed to the circumneural facial arteriovenous plexus. Typical sites of enhancement: anterior genu (...
Article

Intramedullary osteosclerosis

Intramedullary osteosclerosis is a sclerosing dysplasia associated with increased bone formation within the medullary cavity. It is a diagnosis of exclusion.  Epidemiology There is a female predilection, with the condition usually discovered in adulthood. No hereditary risk has been demonstrat...
Article

Anti-Jo-1 antibody positive interstitial lung disease

Anti-Jo-1 antibody positive interstitial lung disease refer to cases of interstitial lung disease occurring in the setting on anti-Jo-1 antibody positivity. Pathology Anti-Jo-1 antibody positivity has a recognized association with interstitial lung disease. This most commonly occurs in a setti...
Article

Venous lacunae (skull)

Venous lacunae, also known as venous lakes, are enlarged venous spaces within the skull, most often in the parasagittal region. They are normal variants and their primary importance is that they may mimic lytic lesions.  Gross anatomy  Venous lacunae are the result of focal venous dilatations ...
Article

Choroid plexus infarction

Choroid plexus infarction is an uncommon stroke syndrome that results from ischemic changes of the choroid plexus cells supplied by the medial posterior choroidal artery, a branch from the posterior cerebral artery (PCA). Clinical presentation Isolated choroid plexus infarction is rare and has...
Article

Soft tissue chondroma

Soft tissue chondromas or extraskeletal chondromas are benign soft tissue tumors of hyaline or myxoid cartilage originating in extraosseous and extrasynovial locations commonly found in the hands and feet. Epidemiology Soft tissue chondromas are rare. They are most commonly seen in middle-aged...
Article

Tarsal canal

The tarsal canal is a medial stem-like continuation of cone-shaped sinus tarsi, often described together as a funnel-shaped tarsal canal and sinus, which extends posteromedially to the sustenaculum tali and lies between the medial and posterior facets of the subtalar joint 1-4.  Gross anatomy ...
Article

Neoplastic pericardial disease

Neoplastic pericardial disease, neoplastic pericardial involvement or neoplastic pericarditis refers to a pericardial infiltration by tumor cells usually associated with a variably sized pericardial effusion and is a form of non-infectious pericarditis. It needs to be differentiated from other c...
Article

Odontoid process agenesis

Odontoid process agenesis is rare, occuring due to a lack of failure of ossification of the odontoid process. It is seen in patients with spondyloepiphyseal and spondylometaphyseal dysplasia 1,2. Radiographic features Plain radiograph On plain film, odontoid process agenesis appears small, as...
Article

D sign (right ventricle)

A D-shaped left ventricle or flattening of the interventricular septum with a D-shaped configuration is a feature described with significant right ventricular (RV) overload / right heart strain such as that occurring with complications of a sizable pulmonary embolic event. It was initially descr...
Article

Myxomatous mitral valve degeneration

Myxomatous mitral valve degeneration, myxomatous degeneration of the mitral valve, myxomatous mitral valve disease or simply myxomatous mitral valve is a non-inflammatory progressive alteration of the mitral valve structure associated with mitral prolapse and mitral insufficiency. Terminology ...
Article

Bishop score

The Bishop score is a criterion for successful induction of labor, vaginal delivery and includes the age of gestation, parity, presenting part of the fetus, previous history of childbirths and consent of the patient. This score decides whether a patient needs cervical ripening or not 1,4. Bisho...
Article

Mucinous adenocarcinoma of the prostate

Mucinous adenocarcinomas of the prostate or colloid adenocarcinomas of the prostate are a variant of acinar adenocarcinoma and characterized by mucinous features. Epidemiology Mucinous adenocarcinomas of the prostate are rare and account for less than 0.5% of prostate cancers 1-4. Clinical pr...
Article

Seminal vesicle amyloidosis

Seminal vesicle amyloidosis refers to the deposition of amyloid in the seminal vesicles and can occur as organ-limited amyloidosis and/or as part of systemic amyloidosis. Epidemiology Amyloid deposition in the seminal vesicles is apparently commonly seen in elderly men with a prevalence rangin...
Article

Braid-like sign (spinal sarcoidosis)

The braid-like sign is an imaging pattern of sarcoidosis spinal cord involvement. It is characterized by a ventral subpial enhancement in the spinal cord.
Article

Taenia sagittalis

The taenia sagittalis or sagittal bundle is a prominent pectinate muscle and a band-like structure in the right atrium and constitutes a mimic for right atrial thrombi or masses. Gross anatomy The taenia sagittalis originates from the crista terminalis and extends upwards and anteriorly dividi...
Article

Prostate atrophy

Prostatic atrophy is characterized by reduced cytoplasm prostatic acinar cells and constitutes a benign mimic of prostate cancer not only on imaging but also histologically. Terminology The term 'proliferative inflammatory atrophy (PIA)' is used if it is associated with inflammation. Epidemio...
Article

McCleery syndrome

McCleery syndrome is a subtype of venous thoracic outlet syndrome with symptoms resulting from compression of the subclavian vein without thrombosis (in contrast to Paget-Schroetter syndrome).  Clinical presentation Patients with McCleery syndrome present with intermittent obstruction of the s...
Article

Tourette syndrome

Tourette syndrome is a common neurodevelopmental disorder, involving ~1% of the population. It is characterized by vocal and motor tics 1.  Clinical presentation A few of the clinical features of Tourette syndrome include: physical pain social isolation emotional disturbance These patients...
Article

Florid reactive periostitis

Florid reactive periostitis is a rare benign lesion, included in a group of reactive bone and soft tissue lesions that create a frequent diagnostic problem. Epidemiology Florid reactive periostitis occurring often in the 2nd  and 3rd  decade of life with a male to female ratio of 1 to 1.5, eve...

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