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原发性女性尿道癌少见,早期用放疗或单纯手术可治愈。文献上仅有1000～1100例的报告。此病占所有女性的0.02%,占妇科疾病的0.1～0.2%,占泌尿系恶性肿瘤的0.01%。发病率因临床人群而异,由主要收治贫民医院的1/1900至收治不同社会经济水平患者的大医院的1/2300。早期病变对早期尿道癌同意外照射后用短距离放疗。前尿道和平行后尿道的相同对照射野经外照射给予4000～4500cGy,同时治疗腹股沟、髂内外动脉淋巴结,突击3～4周后,组织内和阴道插植总量给6500～7000cyG。成功的短距放疗要求剂量分布均匀,通过等距的放射针或放射源达到最好的疗效。作者设计了一种尿道模板附着在阴道圆筒上,模板厚1cm,有固定植针孔保持均匀的间隙插入组织内。模板中间通过尿管引流膀胱,尿管周围
Primary female urethral cancer is rare and can be cured early with radiotherapy or surgery alone. There are only 1,000 to 1,100 reports in the literature. The disease accounts for 0.02% of all women, accounting for 0.1 to 0.2% of gynecological diseases and 0.01% of urological malignancies. Incidence rates vary from one clinical population to the next, ranging from 1/1900 of the main hospitals for the poor to 1/2300 of the large hospitals receiving patients of different socioeconomic levels. Early lesions of early urinary tract cancer agreed to external radiation with short-range radiotherapy. The same pair of irradiation fields of the anterior urethra and parallel posterior urethra were administered by external irradiation at 4000-4500 cGy. At the same time, inguinal and internal and external arterial lymph nodes were treated. After 3 to 4 weeks of assault, the total amount of tissue and vaginal implantation was 6500-7000 cyG. Successful short-range radiotherapy requires that the dose be distributed evenly and that best results are achieved with irradiating needles or radiation sources. The authors designed a urethral template attached to a vaginal cylinder. The template was 1 cm thick. There was a fixed needle insertion hole to maintain a uniform gap into the tissue. In the middle of the template, the bladder is drained through the urinary catheter.