MAC does rarely occur elsewhere in the body, but typically in immuno-compromised people - think active HIV and on meds, or organ transplant and on immunosuppressants.
Sue

My supervisor in work got MAC in his hand. It came from a cactus needle. He has a beautiful cactus garden and was stick by a needle. He did not realize it and, as per the drs, it was embedded for a time and resulted in MAC. He went to NJH and was there for many weeks. The MAC travelled up his arm and required multiple surgeries. He almost lost his finger. But, thank goodness, he instead had to have his tendon removed. He is still being closely monitored.