Computed tomography of relapsing polychondritis.

The CT findings of a patient with relapsing polychondritis involving the larynx, tracheobronchial tree, and nasal cartilage are described. In the proper clinical setting, a characteristic constellation of findings when noted on CT can aid in differentiating this rare inflammatory disease from other causes of airway compromise. CT is the most useful imaging modality, because cartilage and soft tissue components are well visualized. If diagnosed early, appropriate treatment may prevent life-threatening airway obstruction.