Atypical mycobacterial infections of peritoneal dialysis catheter exit sites--a Louisiana issue.

Exit-site infections involving peritoneal dialysis catheters are a cumbersome issue that can be difficult to manage. Such infections are usually due to gram-positive organisms and are often treated successfully with oral and/or topical antibiotics. Infections associated with Mycobacterium sp. are much more rare and difficult to treat. We report our experience with four cases of exit-site infections with Mycobacterium sp. in the New Orleans area, along with a review of risk factors and current literature.