2024 Volume 66 Issue 4 Pages 422-427
A 66-year-old man visited our hospital due to pancreatic duct dilatation. Magnetic resonance cholangiopancreatography showed dilatation of the main pancreatic duct. ERCP showed the absence of a connection with the main pancreatic duct on ventral pancreatography from the main papilla. Dorsal pancreatography from the accessory papilla showed localized stenosis of the accessory duct at the pancreatic head and main pancreatic duct dilation. Moreover, EUS showed an 11-mm hypoechoic mass in the region of the accessory pancreatic duct. The mass was hypovascular in the early phase of Sonazoid contrast. As pancreatic head cancer complicated by pancreatic divisum was suspected, subtotal stomach-preserving pancreaticoduodenectomy was performed. The pathological diagnosis was pancreatic cancer in the region of the accessory pancreatic duct. In this case, pancreatic cancer could be diagnosed at an early stage because the pancreatic duct dilatation occurred at an early stage. This was due to decreased pancreatic juice drainage from the main pancreatic duct caused by the pancreas divisum.
