- Focal obstruction of larger bronchi
- Tumor can occur within trachea (squamous cell, adenoid cystic carcinoma)
- Tumor can cause extrinsic compression (lymphoma, thyroid, esophageal, other)
- Wheezing, stridor
- Symptoms might improve if co-existent infection is treated, w/recurrence and/or progression if primary obstruction not addressed
- Wheezing, which can be focal over airway that's obstructed
- Tracheal process: Stridor → inspiratory & expiratory wheeze loudest over trachea
- Adenopathy in cervical region or other palpable mass