CT appearance of lunate trachea.


Computed tomography provides excellent visualization of the trachea, but there have been only limited descriptions of variations in tracheal shape. The normal tracheal cartilage is U shaped. Lunate shaped trachea is uncommon and is characterized by a coronal/sagittal diameter ratio (tracheal index) greater than 1. We present the CT appearance of a lunate shaped trachea with corresponding pathologic sections. Destruction of the membranous septum caused marked increase in the tracheal index in this patient.


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@article{Lomasney1989CTAO, title={CT appearance of lunate trachea.}, author={Laurie McAdams Lomasney and Colm J. Bergin and Jon W. Lomasney and Victor Louis Roggli and William Landes Foster}, journal={Journal of computer assisted tomography}, year={1989}, volume={13 3}, pages={520-2} }