１例胃平滑肌肉瘤光镜及免疫组化观察李晋云，黎冠群胃恶性间叶组织肿瘤较恶性上皮性肿瘤（胃癌）远为少见，据有关资料报道只约占胃原发性恶性肿瘤的２％。现整理所见１例胃平滑肌肉瘤报告如下。患者男，７４岁。反复黑便６月余就诊，以上消化道出血收入院。体检：一般情... One case of gastric leiomyosarcoma was observed by light microscopy and immunohistochemistry. Li Jinyun, Li Guanqun Gastric malignant mesenchymal tumors are much less common than malignant epithelial tumors (gastric cancer). According to relevant data, they reported only about 2% of primary malignant tumors of the stomach. The 1 case of gastric leiomyosarcoma seen in the present review is reported below. Male patient, 74 years old. Recurrent black stool more than six months of treatment, the above gastrointestinal bleeding income hospital. Physical examination: general situation...