原发性大网膜平滑肌瘤十分罕见,国外文献查到12例,国内未见报导。我们最近遇到一例。介绍于下。患者女性,41岁,左下腹部肿块13年,近4年明显增大。初无意中发现,肿块大如拳头,能活动,无压痛。入院前肿块已占据整个腹腔前部,但仍无腹痛,仅进食后稍感胃部不适,劳动过重时觉心慌气喘。近10个月来食欲渐减,身体日益消瘦。9年前有一 Primary large omental leiomyoma is very rare, and 12 cases have been found in foreign literature. No report has been reported in China. We have recently encountered an example. Introduced in the next. The female patient, 41 years old, had a 13-year mass in the left lower abdomen, which had increased significantly in the last 4 years. Inadvertently found that the mass was as big as a fist and could move without tenderness. Before admission, the mass has occupied the entire anterior part of the abdominal cavity, but there is still no abdominal pain. He only feels discomfort in the stomach after eating, and feels flustered and wheezes when he is overworked. In the past 10 months, appetite has gradually diminished and her body has become increasingly thin. 9 years ago