抄録
A case of a 61-year-old man with a bizarre leiomyoblastoma of the stomach is i eported . He was examined because of abnormality of the antrum in mass survey for a gastric disease. Our fluoroscopic examination revealed a smooth defect on the greater curvature of the antrum with the shadow of calcification. Endoscopy showed a broad-based, hemispheric tumor with a bridging folds, suggesting a submucosa .l tumor. There was no ulcer, nor bleeding on the surface. Partial gastrectomy with gastrojejunostomy was performed. Gross findings of the resected stomach showed a extraluminally growing, 4.0×3.6×1.8cm tumor on the greater curvature of the antrum. Microscopically, the tumor was composed of spindle or polygonal or round cells, and the most of round cells had a perinuclear clear space, which has been regarded as one of characteristic features of bizarre leiomyoblastoma. Case reports of bizarre leiomyoblastoma of the stomach have been increasing recently. Our case is the 36th in Japan, as the case with calcification, is the second one as far as we can refer.
