Mycobacterium marinum as a cause of skin chronic granulomatous in the hand.

Background: Mycobacterium marinum infection has a worldwide distribution and the organism occupies many aquatic environments. Infections in human consist of nodular cutaneous lesions that can progress to tenosynovitis, arthritis, and osteomyelitis. Case presentation : A 27-year-old man was presented with a history of swelling and exudative erythematous lesions and pustules of the right forearm.