患者，女，23岁，未婚，因发现下腹部包块8个月，迅速增大1个月，于1994年8月1日妇检及门诊盆腔B超检查“卵巢畸胎瘤”收入院。患者近半年月经周期改变，经期延长，即为六＞关天，时有痛经，常有膀眈压迫感，即有尿频尿急症状。体检：T36．SC，P80次／分，Bp12／skPa，发育正常 The patient, female, 23 years old, unmarried, due to the discovery of lower abdominal mass for 8 months, rapidly increased by 1 month, on August 1, 1994 gynecological examination and outpatient pelvic cavity B-ultrasound “ovarian teratoma” income hospital. The patient’s menstrual cycle changed in the last six months, and the menstrual period prolonged. That is, six> off days, sometimes dysmenorrhea, often have a sense of bladder pressure, that is, frequent urinary urgency symptoms. Physical examination: T36. SC, P80 beats/min, Bp12/skPa, normal development