Association between Inhaled Corticosteroids and Expiratory Central Airway Collapse in Smokers.

The article presents a case study on Inhaled Corticosteroids and Expiratory Central Airway Collapse in Smokers, which includes weakening of the anterior cartilage or invagination of the posterior membranous wall, the etiology of ECAC remains unclear, cigarette smoking and the presence of other inflammatory airway diseases, such as chronic obstructive pulmonary disease (COPD) and asthma, are associated with the occurrence of ECAC.