Saber-sheath trachea describes an abnormality in the shape of the trachea c
aused by underlying disease processes. We present a case of tracheal stenos
is in a patient with undiagnosed saber-sheath trachea, in which there was u
nexpected difficulty in ventilating the lungs despite a good view at laryng
oscopy and visually confirmed tracheal intubation.