Items tagged “adrenal”

5 results found
Article

Adrenal adenoma

Adrenal adenomas are the most common adrenal lesion and are often found incidentally during abdominal imaging for other reasons. In all cases, but especially in the setting of known current or previous malignancy, adrenal adenomas need to be distinguished from adrenal metastases or other adrenal...
Article

Adrenal myelolipoma

Adrenal myelolipomas are rare benign and usually asymptomatic, tumors of the adrenal gland characterized by the predominance of mature adipocytes.  On imaging, they usually present as large masses with a variable amount of fat-containing components. Epidemiology Rare tumors with estimated aut...
Article

Waterhouse-Friderichsen syndrome

Waterhouse-Friderichsen syndrome (also known as purpura fulminans 9 or hemorrhagic adrenalitis 10) is characterized by adrenal insufficiency that results from atraumatic adrenal hemorrhage in consequence of septicaemia.  Pathology Waterhouse-Friderichsen syndrome is due to septicaemia and comm...
Article

Macronodular adrenal hyperplasia

Macronodular adrenal hyperplasia refers to a morphological type of adrenal hyperplasia in which there is adrenal enlargement in the form of large distinct nodules. It can be congenital or acquired. A specific subtype under this entity is adrenocorticotropin independent macronodular adrenocortic...
Article

Adrenal washout

Adrenal washout can be calculated using the density value of an adrenal mass on non-enhanced, portal venous phase and 15 minutes delayed CT scans (density measured in Hounsfield units (HU)). It is primarily used to diagnose adrenal adenoma. absolute washout [(HUportal venous phase) - (HUdelaye...

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