Abstract
A 84-year-old woman was referred to our hospital because of liver dysfunction. Ultrasonography, computed tomography and magnetic resonance imaging did not reveal the tumor in the pancreas. Only endoscopic retrograde cholangiopancreatography (ERCP) and magnetic resonance cholangiopancreatography showed a small protrusion in the main pancreatic duct. The biopsy of the tumor under ERCP revealed intraductal papillary adenoma of the pancreas and duodenum-preserving pancreatic head resection was performed the resected tumor, 0.8 x 0.7 cm in size, was diagnosed as intraductal papillary adenoma of the pancreas by pathological examination. A rare case of minute intraductal papillary adenoma of the pancreas is reported and the usefulness of ERCP and biopsy under ERCP was discussed.
