摘要目的 探讨无肉眼血尿膀胱恶性肿瘤的临床表现和诊治效果。 方法 总结分析了19例无肉眼血尿膀胱恶性肿瘤的临床特点和诊治方法。 结果 本组19例无肉眼血尿膀胱恶性肿瘤中，8例是B超在诊断其他疾病时偶然发现。该组患者均为移行细胞癌，肿瘤体积小，单发，细胞分化好，治疗效果满意。另外在11例伴有膀胱刺激症状的膀胱恶性肿瘤中，4例为非移行细胞癌，7例为移行细胞癌。该组患者的肿瘤体积较大，多发，细胞分化差，治疗效果不佳，预后不良。 结论 B超检查对发现不典型膀胱肿瘤起有重要的作用。伴有膀胱刺激症状的恶性肿瘤由于预后不良在治疗中应引起重视。

abstractsObjective To investigate clinical manifestations, diagnosis, andtherapeutic outcome of no-macrohematuria bladder cancer. Methods 19 patients with no-macrohematuria bladder cancer were analyzed in terms of their clinical characteristics and diagnosis. Results Eight patients with transitional cell carcinoma were found incidently by ultrasonography during the exmination for other diseases. The tumors were small in size, single, low-grade, and good prognostic. Eleven patients with bladder cancer associated with bladder irritative symptoms were diagnosed by ultrasonography and cystoscopy. They consisted of 4 patients with no-transitional cell carcinoma (2 adenocarcinoma, and 1 squamous cell carcinoma, and 1 malignant lymphoma) and 7 patients with transitional cell carcinomas, moderate or advanced, which were large in size, high-grade and poorly prognostic. Conclusinos Ultrasonography is important in early detection of atypical bladder cancer. The poor prognosis of bladder cancer associated with irritative symptoms of blodder should be studied.