先天性后鼻孔闭锁,在婴儿时期,因吸吮困难而被早期发现。本病例为成人单侧后鼻孔闭锁,临床少见。现报告如下: 男,29岁,因左鼻阻二十余年以“鼻中隔偏曲,右下甲肥大”收住院。入院后查:全身一般情况正常。耳鼻喉科检查:中隔左偏,右下甲肥大,左下甲不大,鼻窦区无压痛,各鼻道无脓,后鼻孔末查。双耳听力正常。咽喉部正常。在局麻下行鼻中隔粘膜下矫正术, Posterior nosocomial atresia, early in infancy, due to the difficulty of sucking was found. The case of adult unilateral posterior nosocomial atresia, clinical rare. The report is as follows: Male, 29 years old, left nasal obstruction for more than twenty years to “nasal deviation, right lower nail hypertrophy” admitted to hospital. After admission check: general condition normal. Otorhinolaryngology examination: left deviation in the septum, right lower nail hypertrophy, left lower armor is not large, no tender sinus area, no purulent nasal passages, after the end of the nose check. Both ears normal hearing. Throat normal. Under local anesthesia nasal septum subarachnoid surgery,