原发于膀胱恶性黑色素瘤十分罕见。我院于2007年底收治1例,现报告如下。患者,女,74岁。因尿频、尿急、间断无痛性肉眼血尿2个月入院。全身皮肤无斑疹,浅表淋巴结不大。彩超检查膀胱腔左侧壁可见3.5 cm×4.5cm不规则实性低回声影,突向膀胱腔,表面不光滑。膀胱剩余尿量135 ml。CT示膀胱左侧壁团块软组织影突入膀胱腔内,局部膀胱壁增厚,其下 Primary malignant melanoma in the bladder is very rare. I hospital at the end of 2007 admitted to a case, are as follows. Patient, female, 74 years old. Due to frequent urination, urgency, intermittent painless hematuria 2 months admitted to hospital. No skin rash, superficial lymph nodes is not large. Color ultrasound examination of the left side of the bladder wall visible 3.5 cm × 4.5cm irregular solid hypoechoic, protruding to the bladder cavity, the surface is not smooth. Bladder residual urine output 135 ml. CT showed the soft capsule of the left side of the bladder wall shadow into the bladder cavity, local thickening of the bladder wall, which under