患者男性,63岁,3月来排尿终末有黄色粘稠液,间有排尿困难、中断,偶见肉眼血尿,无尿路刺激征,近月来尿前小腹疼痛伴下腹肿块。无大便性状改变,肛检阴性。尿蛋白+,红细胞+++,白细胞及粘液少许。尿路静脉造影见膀胱左前上方有弧形双重密度影,边缘毛糙。B 超示膀胱后壁三角区实质光团,突向腔内1.5×1.2cm,膀胱前上方有 Patients, male, 63 years old, in March to the end of yellowing viscous liquid urination, dysuria, interrupted, occasionally gross hematuria, no urinary tract irritation, urinary tract pain in recent months with abdominal mass. No stool changes, anal test negative. Urinary protein +, red blood cells +++, a little white blood cells and mucus. Urethral venous angiography seen in the left front of the bladder arc double density shadow, rough edges. B ultrasound shows the posterior wall of the bladder posterior triangle real light group, protruding to the cavity 1.5 × 1.2cm, before the top of the bladder