患者女,10岁。1个月前无明显诱因出现阴道出血,开始3~4d似月经量,随后为阴道淋漓出血、暗红色,期间下腹痛2次,每次持续约半小时,能忍受,未诊治,妇科检查(肛腹诊):外阴:发育正常、潮红,未婚型;盆腔:可触及一大小约7cm×6cm的包块,质中,活动欠佳,无压痛。超声表现:子宫大小形态正常,轮廓清,边光整,肌壁回声均匀,宫腔线居中,宫内膜厚0.3cm。盆腔内可见大小约7.6 Female patient, 10 years old. 1 month ago no obvious incentive vaginal bleeding began 3 ~ 4d like menstruation, followed by vaginal bleeding, dark red, abdominal pain during 2 times, each lasting about half an hour, can endure, not diagnosed, gynecological examination Rectal examination): Genital: normal development, flushing, unmarried; Pelvic: palpable size of about 7cm × 6cm mass, quality, poor activity, no tenderness. Ultrasound performance: normal shape and size of the uterus, clear outline, edge finishing, uniform muscular wall echo, uterine cavity line center, endometrial thickness 0.3cm. Pelvic visible size of about 7.6