stenosis of nostril

例句：

1. 1. He was diagnosed with nasal stenosis and required surgery to correct it.
   他被诊断出患有鼻中隔偏曲，需要手术来纠正。
2. 2. The patient's symptoms worsened after the nasal stenosis surgery.
   患者手术后症状加重了。
3. 3. The doctor explained that nasal stenosis could be caused by a deviated septum or an enlarged nasal cavity.
   医生解释说，鼻中隔偏曲或扩大的鼻腔可能是导致鼻腔狭窄的原因。