Abstract
A 48 year old man occasional smoker was symptomatic since 4 years with cough with copious amount of expectoration and exertional dyspnoea and recurrent infective exacerbations. There was past history of tuberculosis 15 years back treated with empirical antituberculosis therapy for a period of 1 year. There was no significant family history. Physical examination revealed presence of post exercise desaturation, grade III clubbing and coarse crackles in bilateral lung fields. Chest Radiograph (CXR) showed the presence of bilateral cystic opacities. High Resolution Computerised Tomography (HRCT) of the chest (Figure) (1a) (1b) revealed bilateral cystic bronchiectasis and tracheobronchomegaly with tracheal, right and left main bronchus dimensions being 30 mm, 27.2 mm, 22 mm respectively. Spirometry showed Forced Vital Capacity (FVC) of 1.55 L (of predicted), Forced Expiratory Volume in 1 second (FEV1) of 1.02 L (32% of predicted), and FEV1/FVC of 66%. A diagnosis of tracheobronchomegaly-Mounier Kuhn Syndrome (MKS) was made.
Citation
Suhas HS, Utpat K, Desai U and Joshi JM. Tracheobronchomegaly. SM J Clin. Med. Imaging. 2017; 3(1): 1008.