Abstract
We experienced two cases with pancreatic head carcinomas with annular pancreas presenting as acute pancreatitis. Patient 1 was a 71-year-old man admitted to our hospital because of acute pancreatitis with epigastralgia. 3D-CT showed the pancreatic parenchyma encircling the duodenum and stenosis located in the descending part of the duodenum. A cystic tumor with a mural nodule was also seen in the head of the pancreas. Annular pancreas with IPMC was diagnosed.
SSPPD was performed. Pathological examination indicated annular pancreas and intraductal papillary-mucinous carcinoma, minimally invasive. Patient 2 was a 72-year-old woman admitted to our hospital because of acute pancreatitis with upper abdominal pain. 3D-CT showed stenosis located in the descending part of the duodenum, and a low density tumor in the head of the pancreas. Annular pancreas with invasive ductal carcinoma was diagnosed. SSPPD with SMV resection was performed. Pathological examination confirmed annular pancreas with invasive ductal carcinoma.
