Subglottic tracheal narrowing

Common: Aberrant left subclavian artery; Anterior tracheal indentation; Carcinoma; Croup; Double aortic arch; External trauma; Goiter; Hematoma; Innominate artery compression syndrome; Intubation; Localized retropharyngeal abscess; Lymphadenopathy; Lymphangioma; Lymphoma; Normal expiratory collapse; Paratracheal cyst; Posttracheostomy fibrosis; Repair of esophageal atresia; Right aortic arch; Subglottic hemangioma; Tracheomalacia
Uncommon: Acid aspiration; Adenoma; Amyloidosis; Aspirated tracheal foreign body; Congenital subglottic stenosis; Congenital tracheal stenosis x; Cyst; Ectopic goiter; Ectopic intratracheal thymus tissue; Ectopic intratracheal thyroid tissue; Epidermolysis bullosa; Fibroma; Impacted food; Inflammatory histiocytoma; Juvenile papillomatosis; Lipoid proteinosis; Lipoma; Lye; Mucocele; Papilloma; Polyp; Polypoid hemangioendothelioma; Radiation therapy; Rhinoscleroma; Smoke; Thermal injury; Tuberculosis

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