患者男 ,5 0岁 ,因头晕、乏力 2月 ,黑便 10余天入院。查体 :贫血貌 ,腹平软 ,无压痛 ,上腹部未触及包块。腹部ＣＴ显示 :胃体部见一个 4.5ｃｍ× 3.8ｃｍ的软组织肿块 ,边缘尚光滑 ,部分位于腔内 ,部分突向腔外 ,与邻近胃壁分界尚清 ,诊断胃体部肿块 :性质待定。胃镜检查 :胃 The patient was male, 50 years old. He suffered dizziness and fatigue in February and he was admitted to the hospital for more than 10 days. Physical examination: anemia appearance, abdominal soft, no tenderness, no palpable mass in the upper abdomen. CT on the abdomen revealed a 4.5-cm-3.8-cm soft tissue mass in the stomach body. The margin was still smooth. Some of the lesions were located in the lumen and some of them protruded outward. The border with the adjacent stomach wall was still clear. The diagnosis of gastric body mass was as follows: The nature was to be determined. Gastroscopy : Stomach