A CASE REPORT OF MUCIN PRODUCING PANCREATIC TUMOR WITH INTRAPANCREATIC INVASION DETECTED BY PERORAL TRANSPAPILLARY PANCR.EATOSCOPY (POPS) AND INTRADUCTAL ULTRASONOGRAPHY (ID-US)

Abstract

A 70-year-old female was visited to our hospital because of a hypoechoic tumor in the pancreas head with the dilated main pancreatic duct detected by US in another hospital. We diagnosed it as a mucin producing tumor of the pancreas by US, endoscopic ultrasono-graphy (EUS) and endoscopic retrograde cholangiography (ERCP). And then we diagnosed it as adenoma or carcinoma in situ by EUS and intraductal ultrasonography (ID-US). Peroral transpapillary pancreatoscopy (POPS) was useful to determine the resection line. Histological diagnosis of the resected specimen was cystadenoma. EUS, POPS and ID-US is advantageous to make a differential diagnosis between neoplasm and hyperplasia, and to delineate its intraductal and extraductal extension.