musculoskeletal tuberculosis presenting as isolated tuberculous gumma in an immunocompetent patient

A 57-year-old woman with no significant past medical history and normal immunity presented with a slowly growing mass on her finger. mr imaging showed a low signal intensity soft tissue mass on both t1- and t2- weighted images with peripheral contrast enhancement. the mass was diagnosed as chronic granulomatous inflammation with caseous necrosis histopathologically and also mycobacterium tuberculosis by a polymerase chain reaction about the tissue specimen. authors thought that it was tuberculous gumma presented in an immunocompetent patient. this paper reports a rare case of tuberculous gumma with radiologic findings in an immunocompetent patient.