A Rare Case of Brodie’s Abscess in HIV Patient Caused by Mycobacterium kansasii

We report a rare case of Brodie’s abscess caused by Mycobacterium kansasii (M. kansasii). Our patient is a 39-year-old male who presented with right foot pain a month after a new diagnosis of HIV infection. X-ray and MRI were done, and the diagnosis of Brodie's abscess was confirmed. Surgical debridement was done, and bone cultures grew M. kansasii after five weeks. Brodie’s abscess is a subacute form of osteomyelitis usually caused by Staphylococcus. Some other bacteria have been implicated in several case reports. To best of our knowledge, this is the first case of Brodie's abscess caused by M. kansasii. M. kansasii is the atypical mycobacteria causing infections in immunocompromised hosts as in HIV patients with low CD4 count. M. kansasii is usually associated with lung infections with rare extrapulmonary manifestations as in our case.