saber-sheath trachea

sa·ber-sheath tra·che·a

a type of tracheal collapse seen in chronic obstructive pulmonary disease in which an increase if found in the outer posterior tracheal dimension with side-to-side narrowing involving the lower two thirds of the trachea.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Saber-sheath trachea is a common acquired morphologic abnormality of the intrathoracic trachea, occurring frequently in men with chronic obstructive pulmonary disease.