Discontinuity of hemidiaphragm with focal defect (segmental diaphragmatic defect) Dangling diaphragm sign: Free edge of torn diaphragm curls inward on axial images rather than continuing its normal course parallel to chest…
XGC cannot be confidently distinguished from gallbladder carcinoma radiologically • CT: GB wall may be focally or diffusely thickened Low-attenuation intramural nodules and bands (corresponding to foamy cell infiltrate and abscesses)…
Single, lobulated or cauliflower-like surface • Hyperplastic polyps Multiple, small, sessile polyps of uniform size • Hamartomas: Cluster of broad-based polyps Can occur as part of Peutz-Jeghers syndrome More common are hamartomas…
Misty mesentery: Increased attenuation of mesentery with fat stranding and induration Thin (usually < 3 mm) pseudocapsule encasing inflamed mesentery (tumoral pseudocapsule sign) Cluster of mildly enlarged mesenteric nodes Usually located…
a.k.a. von Meyenburg complex Asymptomatic and of no clinical concern IMAGING • Multiple, near water density/intensity liver lesions < 15 mm in diameter Varied enhancement based on cystic and solid components…
Accounts for 5-15% of colonic adenomas IMAGING • Polypoid lesion with nodular or frond-like surface on BE or CT colonography • Location: Rectosigmoid > cecum > ascending colon > stomach > duodenum…
Cystic or linear collections of gas in subserosal or submucosal layers of GI tract wall • Pneumatosis intestinalis: Most common form of intramural gas, found in SB more often than colon…
(Left) Graphic shows the ventral pancreatic anlagen developing as an outpouching of the hepatic-biliary diverticulum. As the stomach and duodenum elongate, the ventral pancreas and bile ducts rotate clockwise and…
Most often solid, but can have variable internal cystic components and intratumoral hemorrhage • Capsule enhances on CECT and T1 C+ MR and appears as rim of low T2 signal intensity…
