CT Features of Tracheobronchomegaly

Chronic pulmonary suppuration

“…Tracheobronchomegaly is defined by an increase in transverse diameter of the trachea and mainstem bronchi of 3SDs or greater. The mean (SD) tracheal diameter on computed tomography is 18.2 (1.2) mm in males and 15.2 (1.4) mm in females 7. The diagnosis of tracheobronchomegaly can also be confirmed by bronchography, computed tomography, virtual bronchoscopy, and magnetic resonance imaging.…”

Mounier Kuhn syndrome in adult: a case report

“…6 In adults, the accepted criteria for diagnosis of tracheobronchomegaly on CT are diameters of the trachea, right main bronchus and left main bronchus of >30 mm, 20 mm and 18 mm respectively. 7 Mounier-Kuhn syndrome has 3 subtypes. In type 1, there is a slight symmetric dilation in the trachea and main bronchi.…”

Imaging of the trachea

“…Mounier-Kuhn syndrome is a congenital condition with an underlying defect in smooth muscle and elastic tissue (9,10). It is associated with recurrent respiratory infections and occurs more frequently in males and is usually diagnosed in the third to fourth decades of life.…”