患者女性,60岁,已婚。因尿急、尿频,无血尿及发烧,于1991年10月29日入院。妇科史;绝经7年,无不规则阴道出血,孕3、足月产3,子女健在,患者于2年前,曾以排尿异常在某医院诊断为泌尿系感染,给予抗感染治疗而好转。体格检查,心肺(一)、腹部、耻骨上可扪及一鸭蛋大小,质地坚硬,表面光滑,可活动之无压痛性包块。血常规检查(一),尿常规,pH6.0,WBC(+),RBC 0～1/HP。X光检查腹平片可见膀胱区有一约4×4cm大小圆形致密影,周壁呈 Patient female, 60 years old, married. Due to urgency, frequent urination, no hematuria and fever, admitted to hospital on October 29, 1991. Gynecological history; menopause 7 years, all the rules of vaginal bleeding, pregnancy 3, full-term 3, children alive, the patient 2 years ago, had urination abnormalities in a hospital diagnosed as urinary tract infection, giving anti-infective treatment and improvement. Physical examination, cardiopulmonary (a), abdomen, suprapubic palpable and a duck egg size, hard texture, smooth surface, no activity of the tender mass. Blood tests (a), urine routine, pH6.0, WBC (+), RBC 0 ~ 1 / HP. X-ray examination of abdominal plain film shows the bladder area has a round about 4 × 4cm size round dense shadow was