A CASE OF UNILOCULAR MUCINOUS CYSTADENOMA OF THE PANCREAS SHOWING AN INTERESTING CHANGE BY CT OBSERVATION

Abstract

: A 61-year-old female with cystic lesions in the liver and pancreatic tail, which had been detected in 1992, was admitted to our hospital in 2005 because of a remarkably developed liver cystic lesion. Abdominal ultrasonography and CT scans showed unilocular clear-margin cystic lesions without a septum-like structure, a solid component, wall thickening, and calcification in both the liver and pancreatic tail. However, because her previous CT findings showed that the clearly enhanced thickened wall of the pancreatic cystic lesion diminished annually with the lesion's increased diameter, we applied fenestration for the liver cystic lesion and, in contrast, distal pancreatectomy for the pancreatic lesion. Pathological findings revealed that the pancreatic cystic lesion was a mucinous cystadenoma with a typical ovarian-like stroma. Unilocular cystic lesions in the pancreatic tail may be mucinous cystic tumors even without the characteristic features suggesting a cystic tumor. Thus, reviewing past images can be useful for the diagnosis.