1　病例简介患者,女,44岁。左臀部一质软,无痛,拳头大小的肿块3年,活动后自觉不适。近1年来,肿块增大,并于左侧大阴唇发现一鸡蛋大小的肿块,会阴部疼痛,月经后加重。近3个月来,疼痛明显加重,站立时有下坠感,卧位时感略松软并伴咳嗽时增大、增硬及大便形态改变。螺旋ＣＴ检查:平 1 case description Patients, female, 44 years old. Left hip a soft, painless, fist-sized lumps for 3 years, consciously discomfort after the activity. The past year, the lumps increased, and in the left labia majora found an egg-sized mass, perineal pain, increased after menstruation. Nearly 3 months, the pain was significantly increased, there is a sense of falling when standing, feeling slightly soft when lying and with cough increased, hardened and stool changes. Spiral CT examination: flat