Cogan's syndrome with left main coronary artery occlusion.

Cogan's syndrome is a rare idiopathic chronic inflammatory disease of the eye and the inner ear in young adults. Cogan's syndrome can be associated with large vessel vasculitis. We report a young female, with a history of interstitial keratitis and audiovestibular disease, who presents with large vessel vasculitis with left main coronary artery occlusion and develops heart failure. Cogan's syndrome was diagnosed on the basis of the presence of large vessel vasculitis with the typical inner ear and ocular involvement.