Mycobacterium smegmatis pneumonia.

Mycobacterium smegmatis is a non-tuberculous mycobacterium that is usually associated with soft tissue or wound infections in humans. Pulmonary infections secondary to this pathogen are rarely seen and occur only in patients with an underlying condition, such as lipoid pneumonia. This report presents the first case of M. smegmatis pneumonia in an otherwise healthy individual who had no predisposing condition.