A CASE OF MALIGNANT SOLID CYSTIC TUMOR OF PANCREAS FOUND BY DETAILED EXAMINATION OF CHOLELITHIASIS

A 49-year-old woman under dietary therapy for diabetes mellitus on an ambulant basis was pointed out to have a tumor of the pancreatic head by abdominal ultrasonography. She was admitted to the hospital for operation. There was a previous history of acute pancreatitis due to cholelithiasis 18 years before admission. Intraoperative frozen section histology offerred a suspicion of malignant carcinoid tumor. Pancreatic duodenectomy and cholecystectomy were performed. Conventional histopathological and immunohistochemical examinations revealed malignant solid cystic tumor of the pancreas. After the operation the patient recovered uneventfully. Solid cystic tumor of the pancreas is a rare type of pancreatic tumor and is common in young women. It is usually benign, but sometimes malignant with local recurrence and distant metastasis. We report our case together with a review of the literature.