患者男，49岁，因间歇性无痛性全程肉眼血尿8年而入院。8年中多次血尿，于饮酒及劳累后加重、查体：发育正常，心、肺、腹均未见异常；化验；尿常规RBC均布；蛋白（＋）；多次尿儿茶酚胺定性（－）。影像学检查：B超膀胱充盈下观察，于膀胱左后壁前列腺左前方可探及—3．5×2.9 Male, 49 years old, admitted to hospital for intermittent, painless gross hematuria for 8 years. Hematuria occurred several times in 8 years, increased after drinking and exertion, physical examination: normal development, heart, lung, abdomen were no abnormalities; laboratory tests; urine routine RBC uniform; protein ). Imaging examination: B superficial bladder filling observed in the left posterior wall of the bladder can be explored in the left front and -3.5 × 2.9