[Cystadenoma and cystadenocarcinoma of the pancreas. Clinical aspects, therapy and prognosis].

Cystadenoma and cystadenocarcinoma are relatively rare forms among tumors of the pancreas (10% and 1%, respectively). Imaging methods have increased the numbers diagnosed. Between 1964 and 1984 nine cystadenomas and ten cystadenocarcinomas have been observed. Correct diagnosis is often delayed until there is a palpable upper abdominal mass. Histologically there are three different forms: benign, serous cystadenoma (multicystic, with clear fluid); mucoid cystadenoma (sticky, glass-like; single cavity; potentially malignant); and cystadenocarcinoma. Treatment of choice is complete tumour resection. The prognosis is definitely better for cystadenoma than ductal adenocarcinoma.