Mycobacterium haemophilum

**Definition:** A species of gram-positive, aerobic bacteria that causes granulomatous or ulcerating skin lesions in immunosuppressed persons. This organism owes its name to its requirement for growth of high levels of iron, conveniently supplied as blood, heme, or ferric ammonium citrate.

**Tree numbers:** - B03.510.024.962.500.480 - B03.510.460.400.410.552.552.480

**Synonyms:** - Mycobacterium hemophilum