Primary Mycobacterium bovis infection revealed by erythema nodosum.

Mycobacterium bovis is responsible for a zoonosis originating in cattle. This disease has rarely affected man in industrialised countries since the establishment of veterinary surveillance in cattle. We report the case of a young female patient who developed a Mycobacterium bovis primary infection revealed by erythema nodosum. Infection was probably due to the consumption of non-pasteurised milk in Morocco. This clinical manifestation is rare and physicians ought to be aware of this imported pathology.