May Cause

Diffuse tracheal narrowing

Intratracheal mass

Subglottic tracheal narrowing

Upper airway obstruction in a child

May Be Caused by

 Common

Congenital tracheomalacia

Intubation

Surgery

Tracheostomy

 Uncommon

Atelosteogenesis

Beckwith-Wiedemann syndrome

Campomelic dysplasia

Cerebrocostomandibular dysplasia

Diastrophic dysplasia

DiGeorge syndrome

Hallermann-Streiff syndrome

Innominate artery compression syndrome

Larsen syndrome

Marfan syndrome

Mounier-Kuhn syndrome

Oculo-auriculo-vertebral spectrum

Proteus syndrome

Robinow syndrome

Trisomy 21