子宫内膜间质肉瘤(简称间质肉瘤)是较为罕见的高度恶性肿瘤,约占子宫肉瘤的15～26％,占所有女性生殖系统肿瘤的0.5％,对于间质肉瘤的来源、命名、形态、诊断等,意见不一。因此,通过我院遇到的2例间质肉瘤的临床病理观察,结合文献对其作扼要讨论,供同道参考。例1李××、30岁,病检号1351。阴道不规则流血,下腹包块进行性肿大一年余。月经史:16岁初潮,30天1次,持续7～9天,量约200ml。已婚,未孕。查体:下 Endometrial stromal sarcoma (referred to as mesenchymal sarcoma) is a relatively rare high-grade malignant tumor, accounting for about 15-26% of uterine sarcoma, accounting for 0.5% of all female reproductive system tumors, for the source, name, morphology of stromal sarcoma , diagnosis, etc. Therefore, through the clinicopathological observation of two cases of mesenchymal sarcoma encountered in our hospital, the literature was discussed briefly for reference. Example 1 Li X, 30 years old, medical examination number 1351. Irregular vaginal bleeding, swelling of the lower abdomen for more than a year. Menstrual history: 16-year-old menarche, 30 days 1 for 7 to 9 days, the amount of about 200ml. Married, not pregnant. Physical examination: under