静脉内或淋巴管内平滑肌瘤病是一种很少见的组织学形态良性的 ,但具明显侵入脉管内生长的平滑肌瘤。现将我们见到的２例报告如下 :例１ :女性 ,４０岁，因月经过多 ,经期延长半年就诊。妇检发现子宫增大如孕３个月大小 ,表面尚平滑 ,Ｂ超提示宫体平滑肌瘤。病理检查 :次全子宫? Intravenous or lymphatic leiomyomatosis is a rare histological form of benign, but it has invasive vascular smooth muscle tumors. We have seen two cases of the following reports: Example 1: Female, 40 years old, due to menorrhagia, menstrual period extended six months. The gynecological examination found that the size of the uterus was increased, such as the size of the pregnancy for 3 months, the surface was still smooth, B-ultrasound prompted uterine leiomyoma. Pathological examination: sub-uterus?