Primary neuritic leprosy in a black South African.

A case of primary neuritic leprosy in a black South African is described, in which the multiple peripheral nerves were affected. The clinical picture and electrophysiological studies are in keeping with a picture of mononeuritis multiplex. Selective involvement of the facial nerve branches with normal blink reflex latencies was observed. The biopsy of the sural nerve disclosed features most consistent with borderline leprosy.