RESECTION OF ENLARGED PANCRETIC MUCINOUS CYSTADENOMA FOLLOWING TO THE CYST-JEJUNOSTOMY: A CASE REPORT

概要

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A housewife complaining of a nontender mass in the LUQ of the abdomen underwent cystojejunostomy for a unilocular cyst of the pancreatic tail at 33 years of age. A retention cyst was suspected upon histology of the cystic wall. The patient repalpated a similar mass three years following the surgery. She was readmitted on September 28, 1984, at 38 years of age, because of the enlarging mass. A multilocular cyst at the pancreatic tail was demonstrated upon abdominal ultrasonogram and CT. Under the diagnosis of pancreatic cystadenoma, the patient was reexplored. Removal of the mas with splenectomy and distal panceratectomy showed a 12×11×7cm, mass weighing 500g numerous cysts in its cross section. Lining cells of cuboidal and columnar epithelia without malignancy were demonstrated histologically. Pancreatic mucinous cystadenoma was evaluated following additional PAS and mucicarmin stainings. Mucinous cystadenoma has a malignant potential to cystadenocarcinoma. Twenty-seven cases including our own have been noted in the Japanese literature. Compared with serous cystadenoma, which is usually benign, mucinous cystadenoma showed frequency of 1.8 times, a prevalence of elderly patients, and higher occurrence in the pancreatic body and tail. Thorough excision is mandatory to prevent malignant change.
日本臨床外科学会の論文