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Pancreas

SOLID: Ductal Adenocarcinoma 90%, acinar cell ca (rare) CYSTIC: Serous, Mucinous, SPEN, IPMN ENDOCRINE: hypervascular insulinoma, gastrinoma, glucagonoma, VIPoma, somatostatinoma ADENOCARCINOMA: double duct sign, hypodense, panc head, encasement of SMA (non-resectable) PANC MASS W/O DUCT DIL: autoimmune and groove pancreatitis, cystic or neuroendocrine tu, GIST, mets, lymphoma DOUBLE DUCT SIGN W/O PANC MASS: Adenoca until proven otherwise SEROUS CYSTADENOMA: (GrandMother), many small cysts (may look solid), central calcs, hypervascular MUCINOUS CYSTIC NEOPLASM: (Mother), large cysts, tail or body, mlg potential SPEN: Solid and Papillary Epithelial Neoplasm: large mass w/ heterogeneous solid and cystic areas and hemorrhage, young women and children IPMN: Intraductal Papillary Mucinous Neoplasm: cystic intrapancreatic leson in contiguity w/ main duct or sidebranch WIRSUNG duct drains into major papilla SANTORINI duct always drains into minor papilla Pancreas DIVISUM: crossing sign - CBD crossing over main duct ANNUAL PANCREAS: double bubble sign in neonates COMMON CHANNEL: pancreaticobiliary maljunction VON HIPPEL-LINDAU: multiple malignancies and cysts. In panc serous cystadenoma CYSTIC FIBROSIS: fatty atrophy or panc cystosis (diffuse replacement w/ cysts) INTRAPANCREATIC ACCESSORY SPLEEN: may mimic hypervascular neoplasm ACUTE PANCREATITIS: necrosis, fluid collections, pseudocyst, abscess, splenic artery bleeding, peudoaneurysm, splenic vein thrombosis CHRONIC PANCREATITIS: numerous coarse calcs AUTOIMMUNE PANCREATITIS: sausage shaped enlargement of entire panc or focal, segmental form may mimic panc mass, ddx: lymphoma GROOVE PANCREATITIS: