Discussion of Tracheobronchomalacia
- Tracheobronchomalacia is characterized by weakness of the tracheal walls and supporting cartilage.
- Primary tracheobronchomalacia is a congenital weakness that presents at birth
- Secondary or acquired tracheobronchomalacia is associated with prior intubation or radiation and a history of tumors and chronic obstructive pulmonary disease.
- Previous surgery and a history of tracheoesophageal fistula are also recognized risk factors for the development of tracheobronchomalacia.
- Recent clinical data suggest that in patients presenting with chronic cough, tracheobronchomalacia is the third most common cause after asthma and gastroesophageal reflux.
- Symptoms are nonspecific; include cough, wheezing, and dyspnea; and are often misinterpreted as asthma.
 Imaging Findings for Tracheobronchomalacia
- Significant tracheal collapse with expiration.
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 References for Tracheobronchomalacia
- Gilkeson, R. C., Ciancibello, Leslie M., Hejal, Rana B., Montenegro, Hugo D., Lange, Paul. Tracheobronchomalacia: Dynamic Airway Evaluation with Multidetector CT. Am. J. Roentgenol. 2001 176: 205-210.