Strictures long and smooth without irregularity and may cause proximal biliary dilatation • MR: MRCP images nicely demonstrate irregularity and strictures of intrahepatic or extrahepatic bile ducts (most commonly affecting distal…
Usually unilocular, well-defined cyst with sharp margin and thin imperceptible wall – Typically no internal complexity, septations, nodularity, or calcifications – Usually no communication with pancreatic duct – Usually single cyst but frequently…
Impression on CHD is often concave to the right Cholecystocholedochal fistula: Contrast directly passes from biliary tree into GB • MR: Dilated CHD and intrahepatic ducts with stricture at level of stone…
Massively dilated bile ducts (either diffuse or localized) filled with mucin Mural nodules best visualized after removal of mucin Biliary dilation both proximal and distal to mural nodule • CT/MR: Markedly…
Complete fatty infiltration and replacement of parenchyma (often by end of teenage years) Pancreatic cysts: Usually small (< 3 mm), but can be larger and can completely replace pancreas (cystosis)…
Small, soft enteric tubes Some with flexible metallic tips Tip of feeding tube should be located beyond stomach (distal duodenum or jejunum) • Nasogastric tubes Large-bore, moderately stiff Used for temporary…
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,…
“Bird beak” deformity: Dilated esophagus with smooth, symmetric, tapered narrowing at esophagogastric region Transient flow of fluid into stomach when hydrostatic pressure of fluid column exceeds tonic LES pressure Length…
Usually for liver failure due to chronic TPN • Donor bowel has copious lymphoid tissue and bacteria Higher prevalence of rejection and infectious complications than solid visceral transplants IMAGING • Vascular complications:…
Mucosal hyperplasia (simple mucocele) Mucinous cystadenoma (most common) Mucinous cystadenocarcinoma (↑ risk of perforation) • Pseudomyxoma peritonei Due to rupture of mucocele, usually malignant rather than benign mucocele Peritoneal cavity filled…
