患者男,40岁.尿频、尿痛4年余.近3个月来加剧,伴下腹坠痛及尿流中断,改变体位可分段排尿。有时出现终末血尿.经X线尿路平片示“膀胱结石”.体检:耻骨联合上方膀胱区压痛(+)。右肾区叩击痛(+)。血常规正常.尿常规:红细胞(++),白细胞(++)。后在连续硬膜外麻醉下行膀胱取石术,术中切开膀胱,见膀胱底部有一约小鸡蛋大小肿物,其左端露出帽状结石,肿物表面为膀胱粘膜样组织,基底部与三角区右上角相连。切开肿物,乃为一 Male patient, 40 years old. Frequent urination, dysuria more than 4 years. Exacerbated in the past 3 months, with abdominal pain and urinary flow interruption, changing position can be segmental urination. Sometimes there is a terminal hematuria .Through the X-ray urinary tract showed “bladder stones.” Physical examination: pubic symphysis above the bladder area tenderness (+). Right kidney area percussion pain (+). Normal blood. Urine routine: red blood cells (++), white blood cells (++). After continuous epidural anesthesia for bladder lithotomy, intraoperative incision of the bladder, see the bottom of the bladder there is a small egg size of the tumor, the left exposed cap-like stones, the tumor surface of the bladder mucosa-like tissue, basal and triangular area Connected to the upper right corner. Cut the tumor is one