Adenomyoma of the stomach.

Two cases of adenomyoma of the stomach and a review of previous reports in the literature are presented. Adenomyoma is a benign lesion of the pylorus of the stomach composed of smooth muscle, cysts, and glandular structures lined by all columnar epithelium, Brunner's glands, and sometimes pancreatic tissue. The histopathological and radiological characteristics of this lesion are discussed.