A case of cutaneous Mycobacterium chelonae infection requiring a differential diagnosis of Mycobacterium stephanolepidis infection

Mycobacterium stephanolepidis is a rapidly growing mycobacterium, closely related to Mycobacterium chelonae. It was first reported in 2017, and whether it is infectious to humans is unknown. Here, we report a rare case of cutaneous M. chelonae infection requiring a differential diagnosis of M. stephanolepidis infection.