结核性界旁窦道临床上比较少见，易误诊，笔者遇1例，报道如下。患者男．58岁．农民。2年前在无明显诱因下左侧鼻后上端有－绿豆大小颗粒样突起．有库感，经常抓扬．继之出现皮肤红肿．糜烂．并向内发展．且经常向外流脓、经多方抗炎对症治疗无好转．而来我科就医，拟左鼻旁赛 Sinusitis tuberculosis in clinical relatively rare, easily misdiagnosed, the author encountered a case, reported as follows. Patient male. 58 years old. Peasants. 2 years ago in the absence of obvious incentive left upper posterior nasal - mung bean size pellet-like process. A sense of the library, often seize. Followed by skin irritation. erosion. And inward development. And often outward pus, after multi-party anti-inflammatory symptomatic treatment without improvement. Come to our department for medical treatment, to be left nosebleed