Controversial whether CTA/MRA is superior to US for TIPS surveillance US is primary TIPS surveillance tool CTA or MRA indicated if US is technically compromised or equivocal TOP DIFFERENTIAL DIAGNOSES…
Associated with other diseases and drugs (e.g., myeloproliferative; immunosuppressives) Signs of portal hypertension are common (> 50%) • LRNs Multiple focal liver masses or nodules 0.5-5 cm in size with persistent…
Most common site of involvement is lung Also lymph nodes, spleen, liver, eyes, skin, salivary glands, nervous system, heart Less common: Bones, GI, GU • Most common abdominal imaging finding is…
Terminal ileum affected in minority of patients • Toxic megacolon Colon is dilated with loss of fold and mucosal pattern Ascites is common ± pneumatosis, pneumoperitoneum TOP DIFFERENTIAL DIAGNOSES • Granulomatous colitis…
Small free fluid, edema, and fat stranding in surgical bed with reactive subcentimeter lymph nodes in mesentery Mild biliary dilatation, gastrojejunostomy thickening, and pancreatic duct dilatation due to anastomotic edema…
Simple fluid density (0-10 HU) or slightly hyperdense Internal gas in absence of intervention/drainage highly suspicious for infected collection “Abscess” suggests a discrete, drainable fluid collection: Differentiate from ill-defined inflammation…
Adenomyomatosis: Mural GB wall thickening due to formation of intramural diverticula (Rokitansky-Aschoff sinuses) with smooth muscle and epithelial proliferation Cholesterolosis: Deposition of foamy, cholesterol-laden histiocytes in subepithelium of GB IMAGING…
Perisplenic hematoma: Located adjacent to spleen and implies disruption or rupture of splenic capsule Intraparenchymal hematoma: Typically round or irregular in shape Subcapsular hematoma: Constrained by splenic capsule and crescentic…
Micronodular pattern: Earliest findings may be subtle peritoneal thickening and hyperenhancement – Stranding and nodularity in mesentery may result in “pleated” or “stellate” appearance Nodular pattern: More discrete nodules may be present measuring…
Primary (hereditary): Autosomal recessive Secondary: Due to increased iron intake, transfusions, etc. • Hemosiderosis Increased iron deposition without organ damage IMAGING • Liver that is hyperdense on NECT and markedly hypointense on…
