患者男 ,2 8岁。因双鼻反复出血于 1998年 2月在他院行双鼻微波热凝辐射治疗。术后双鼻结痂 2周不愈来我院就诊。检查见双侧鼻中隔前下区结痂呈黑色 ,结痂表面较硬 ,触及微有活动。其结痂面积长约 1.6ｃｍ ,宽 1.2ｃｍ不规则。湿敷后即用细胞色素Ｃ、三磷酸腺酐混合液棉片湿敷 Male patient, 2 8 years old. Repeated double nasal bleeding in February 1998 in his hospital double nasal microwave coagulation radiation therapy. Postoperative double nasal scab 2 weeks not to our hospital. Check see bilateral nasal septum before the lower crust was black, scab surface harder, touching slightly activities. The scab area is about 1.6cm long and 1.2cm wide and irregular. After wet compress with cytochrome C, triphosphate mixture wet cotton swab