Alternaria alternata is a dematiaceous mold capable of causing systemic and dermatological infections in immunosuppressed patients. We present a case of a liver transplant patient with cutaneous alternariosis and no response to amphotericin B lipid or surgical debridement of the lesions. Treatment with intravenous voriconazole was initiated, followed by the oral protocol, with complete resolution of the lesions. Voriconazole is an efficient alternative for the treatment of cutaneous lesions produced by A alternata.