Abstract
A 68-year-old female consulted the department of internal medicine in our hospital with the chief complaint of fever up. She was admitted with a diagnosis of pneumonia, but a tumor-like mass with a cystic lesion was detected in the pancreatic tail by an abdominal CT scan for close investigation. After discharge, various examinations were performed and the most likely diagnosis was solid-papillary tumor or cystic tumor of the intrapancreatic accessory spleen. According to wishes of the patient, pancreatic tail resection and splenectomy were performed. On pathologic examination, the mass was a cyst connecting to the pancreatic tail and a portion of the outer surface of the cyst was covered with the accessory spleen. Then the pathologic diagnosis was epithelial cyst of the intrapancreatic accessory spleen.
Cystic tumor of the intrapancreatic accessory spleen is rare and it has been reported in less than fifty cases in the world. In addition, it is a benign tumor, but surgical resection was performed because a possibility of malignancy could not be ruled out. This case is reported together with some bibliographical comments here.
