例1 女,18岁。主诉尿频,排尿费力1年,尿道外口出现肿物1月,于1987年8月8日入院。曾在门诊部诊断为尿道口息肉并行电灼治疗,术中“息肉”消失,以后尿道口肿物在排尿时反复出现。下蹬时查体可见尿道外口有鸡蛋大小球形肿物,表面红肿呈紫红色,似囊状但不透明。卧位时肿物消失,静脉肾盂造影 Example 1 female, 18 years old. Chief complaint urinary frequency, urination laborious 1 year, urethral tumor appeared in January, on August 8, 1987 admitted. In the outpatient department diagnosed as urethral polyps in parallel with the treatment of electrocautery, intraoperative “polyps” disappear after urethral orifice recurrence in urination. Check under the pedicle urethra can be seen under the size of the egg size spherical tumor, swelling was purple, cystic but opaque. When the decubitus tumor disappeared, intravenous pyelography