KEY FACTS Terminology Part of spectrum of congenital abnormalities resulting in variable degrees of fibrosis and cystic anomalies of liver, bile ducts, and kidneys (fibropolycystic disease) You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy…
Relevant Anatomy and Embryology Fibropolycystic Disorders Anomalies may occur during the embryologic development of the ductal plate that surrounds the portal vein in fetal life. Depending on the stage of fetal development at which these defects occur, a variety of…
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KEY FACTS Imaging Spectrum of appearances on CT Solitary, well-defined, water density, unilocular cystic lesion – Thin wall with sharp interface to normal splenic tissue – No peripheral/intracystic enhancement or solid component Some cysts can have septations, trabeculations, thick wall,…
KEY FACTS Terminology Dissemination of splenic tissue into ectopic locations following splenic rupture (either traumatic or iatrogenic) Imaging Can occur in virtually every compartment of body Most common in abdomen/pelvis (65% of cases) Usually located within peritoneal cavity (greater omentum,…
KEY FACTS Terminology Global or segmental parenchymal splenic ischemia and necrosis caused by vascular occlusion Imaging Acute findings on CECT Diagnosis best made on portal venous-phase images due to heterogeneous arterial-phase enhancement Global infarction: Complete nonenhancement of spleen – ±…
KEY FACTS Terminology Splenomegaly: Splenic enlargement caused by a number of different underlying disorders Hypersplenism: Syndrome consisting of splenomegaly and pancytopenia in which bone marrow is either normal or hyperreactive You’re Reading a Preview Become a Clinical Tree membership for…
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KEY FACTS Terminology Benign ectopic splenic tissue of congenital origin Imaging Most splenules located in or near splenic hilum or ligaments 20% are near or within pancreatic tail and can mimic pancreatic neuroendocrine tumor May also be in diaphragmatic, pararenal,…