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尿道癌在两性中均罕见,男女之比为1∶5。在女性中,尿道癌仅占恶性肿瘤的0 02%。两性尿道癌的5年生存率均不足40%。预后差往往由于诊断太晚,症状无特征,常被误认为泌尿或妇科疾病造成的。尿道癌最早和最常见的症状是尿道流血、持续性尿频、排尿困难。而性交困难、尿部疼痛和阴道流尿均较少见。按部位尿道癌分为前后,前尿道肿瘤来自尿道远端1/3,后尿道肿瘤来自尿道近端2/3。组织学检查75%为鳞癌,其余为腺癌或移行细胞癌,尿道癌常有区域淋巴结转移,手术时30-50%患者有区域淋
Urethral cancer are rare in both sexes, male to female ratio of 1: 5. In women, urethral cancer accounts for only 0.02% of malignant tumors. 5-year survival rate of both urethra cancer are less than 40%. Poor prognosis is often due to the diagnosis is too late, the symptoms are not characterized, often mistaken for urinary or gynecological diseases caused. Urinary tract cancer is the earliest and most common symptoms of urethral bleeding, persistent urinary frequency, dysuria. Difficulties in sexual intercourse, urinary tract pain and vaginal bleeding are less common. According to the site of urethral cancer is divided into before and after, the anterior urethral tumor from the distal urethral 1/3, urethral tumor from the proximal ureter 2/3. Histological examination of 75% of squamous cell carcinoma, the rest of the adenocarcinoma or transitional cell carcinoma, urethral carcinoma often regional lymph node metastasis, 30-50% of patients with regional lymphoma