RT Journal Article SR Electronic T1 Two Cases of Tracheal Disease Misdiagnosed as Difficult-to-Treat Asthma JF Respiratory Care FD American Association for Respiratory Care SP respcare.02350 DO 10.4187/respcare.02350 A1 Ibrahim Onur Alici A1 Ozlem Kar Kurt A1 Adile Berna Dursun A1 Aydin Yilmaz A1 Ferda Oner Erkekol YR 2013 UL http://rc.rcjournal.com/content/early/2013/02/19/respcare.02350.abstract AB Initial management of patients with difficult-to-treat asthma must begin with confirmation of the diagnosis. Herein we present 2 cases of tracheal disease misdiagnosed as difficult-to-treat asthma. After systemic evaluation, tracheomalacia and tracheobronchial narrowing due to diffuse calcification of the cartilaginous rings was found as mimicking asthma.