Nocardia cyriacigeorgica brain abscess with Pemphigus vulgaris: first report.

Nocardia brain abscess is an uncommon but potentially life threatening opportunistic infection that generally occurs in immunocompromised patients. Nocardia cyriacigeorgica is a recently described species rarely reported as a cause of human disease. Pemphigus vulgaris is managed with immunosuppression. There have been four prior reports of brain abscess caused by Nocardia cyriacigeorgica.