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lüll Portal annular pancreas A rare variant and a new classification Joseph P; Raju RS; Vyas FL; Eapen A; Sitaram VJOP 2010[Sep]; 11 (5): 453-5CONTEXT: Portal annular pancreas is a rare congenital anomaly resulting from fusion of the pancreatic parenchyma around the portal vein/superior mesenteric vein. It is asymptomatic, but could have serious consequences during pancreatic surgery, if unrecognized. We describe a variant of this anomaly encountered during pancreaticoduodenectomy and propose a new classification. CASE REPORT: We report a 51-year-old male who underwent a pancreaticoduodenectomy for periampullary carcinoma. After division of the pancreatic neck, a sheath of tissue was found posterior and extending to the left of the portal vein. When we divided this tissue, a large duct was encountered; this duct communicated with the main pancreatic duct. On review of the CT images, the main pancreatic duct was seen to be passing posterior to the portal vein and a smaller accessory pancreatic duct was present anterior to the portal vein. We describe the surgical implications. CONCLUSION: This variant of portal annular pancreas has not yet been reported during pancreaticoduodenectomy and we propose a new classification for this fusion anomaly.|Congenital Abnormalities/*classification/surgery[MESH]|Humans[MESH]|Male[MESH]|Middle Aged[MESH]|Models, Biological[MESH]|Pancreas/*abnormalities/surgery[MESH]|Pancreatic Diseases/classification/*congenital/surgery[MESH]|Pancreaticoduodenectomy/methods[MESH]|Rare Diseases/classification/congenital/surgery[MESH] |