Diffuse infiltration and low density on NECT Multiple well-defined, homogeneous, low-density (CECT) or high-intensity (T2WI) masses • Liver metastases Hypovascular metastases: Low-density center with peripheral rim or target-like enhancement Hypervascular metastases:…
Mucosal hyperenhancement, marked submucosal edema, ascites Multiple air-fluid levels, inflamed pericolonic fat • Ultrasound findings Symmetric wall thickening and submucosal echogenicity Increased mural flow on color Doppler • Fluoroscopic findings Used less…
Simple hepatic or bile duct cyst • Often multiple: Usually < 10 When > 10, consider autosomal dominant polycystic liver disease (ADPLD) or biliary hamartomas • Sharply defined margins, thin walls • Water…
Large, unilocular/multilocular, well-defined, hypodense cysts Contains multiple internal “daughter” cysts of lower density than “mother” cyst (exocyst) Curvilinear ring-like calcification of pericyst (wall) Calcified wall: Usually indicates no active infection…
Pericholecystic free fluid, intraluminal or pericholecystic hematoma, or GB wall thickening Poor definition of GB wall, abnormal GB contour, or collapsed GB, particularly with surrounding pericholecystic fluid, suggest GB perforation…
GE junction (at B ring) will be above diaphragm; intact wrap around proximal stomach (neoesophagus) will be below diaphragm IMAGING • Preoperative: Identify “short esophagus,” hiatal hernia, and dysmotility • Wrap complications…
Left hepatic duct formed by segmental branches from segments II-IV Right hepatic duct has 2 branches, including a horizontally oriented anterior branch draining segments V and VIII and a vertically…
Solitary or multifocal strictures of variable length • Cholangiography: Gold standard for diagnosis Appearance may be identical to PSC with “beading” of biliary tree (alternating stenosis, normal ducts, and mild dilatation)…
Emboli to SMA from cardiac sources most commonly Affects right colon ± small bowel CT findings often subtle (ileus, lack of mucosal enhancement, no wall thickening acutely) • Mesenteric venous thrombosis Thrombosis…
