Bizarre Leiomyoblastoma of the Stomach<subtitle>—A Case Report and Review of 40 Cases in the Japanese Literature—</subtitle>

Abstract

A 42-year-old woman with leiomyoblastoma of the stomach is described. She is living well for more than five years following operation. The clinical findings of 40 Japanese patients with leiomyoblastoma were also reviewed. In this series, the tumor was essentially seen in adults. The average age of the patients was 53, and the sex ratio was equal. The most important and valuable diagnostic aid was roentogenography. The tumors are usually found in the antrum, but rarely in the cardia. Endoscopically, a polypoid mass, which is frequently umbilicated or ulcerated, can be visualized. The size of tumor varies from 1.2 cm to 11 cm in diameter and the growth usually occurs singly. No metastatic case was found, but four had concomitant gastric cancer and two had gastric leiomyoma among the 40 Japanese cases.