Late-onset Cogan's syndrome associated with large-vessel vasculitis.

Cogan's syndrome is a rare autoimmune disease that usually affects young Caucasian adults and is classically defined as the combination of nonsyphilitic interstitial keratitis and audiovestibular symptoms resembling Meniere's disease, both of them developed in an interval of less than two years. Nevertheless, cases with atypical ophthalmologic and audiovestibular features, with systemic manifestations or affecting children and older patients have also been reported, expanding the clinical spectrum of Cogan's syndrome. Herein, we present the case of a late-onset Cogan's syndrome associated with a large-vessel vasculitis.