Tracheal stenosis

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  • Post intubation - short segment
  • c-ANCA disease
  • Sarcoidosis
  • TB
  • Compression by neoplasm
  • Histoplasmosis
  • Amyloid - diffuse multifocal, calcification in wall
  • Relapsing polychondritis - long segment narrowing, also affects ears, nose, spares posterior wall
  • Tracheobronchopathia osteochondroplastica (TBO) - rare, nodules of bone and cartilage, collaspe on expiration may be treated with stent, spares posterior wall