Pancreas divisum coexistent with gallbladder carcinoma--report of a Chinese patient.

The coexistence of pancreas divisum and gallbladder carcinoma is uncommon and, to the best of our knowledge, has never been reported in English literatures. We have encountered a 62-year-old patient with symptom of intermittent right upper quadrant abdominal pain. Abdominal ultrasonography and computed tomography showed a gallbladder tumor. Endoscopic retrograde cholangiopancreatography revealed existence of complete pancreas divisum but no anomalous union of pancreaticobiliary duct. He underwent cholecystectomy and histologic analysis revealed tubulovillous adenoma with focal malignant change in the gallbladder.