Microcystic Adenoma of Pancreas: Case report

Park, Ki Ho; Kim, Yang Il; Yoo, Yong Oon; Park, Sung Hwan; Lee, Han Il; Joo, Dae Hyun

Abstract

Microcystic adenoma, also known a glycogen rich or serous cystadenoma is very rare and usually presents grossly a large multiloculated mass, and the individual cystic cavities being small and filled with a clear(serous) fluid. The cut surface is spongy in appearance. Microscopically, cysts are composed of multiple small cysts lined by small, flat or cuboidal cells containing abundant glycogen but only an insignificant amount of mucin. The microcystic cystadenoma is benign, but mucinous cystadenoma is potentially malignant,so the two cysts should be differentiated, and should never be treated by-pass sugery in the case of mucinous cystadenoma. A 43-year-old female was admitted to this hospital with the palpable epigastric mass, postprandial nausea and weight loss for the preceeding 2 years, and increase in size in the past recent 8 months. Upper G.I series and ultrasonographic studies revealed a huge mass in the pancreatic head portion. Exploratory laparotomy was performed, which disclosed a round adult fist sized multicystic mass in the pancreatic head. Pancreaticoduodenectomy was performed. In gross specimen examination, the mass was 9x7.5x7 cm in size, the outer surface was smooth and grayish white, the cut surface was sponge- like with multiple small cysts. The content of cysts was serous fluid. Microscopically, the cystic mass was composed of small cysts, in which the lining of the cell shows flat and mild secretory activity. There was no malignant evidence. The patient was discharged uneventfully on the 22nd postoperative days.