Melorheostosis usually affects long bones of the lower limbs, and the hand is a relatively uncommon site of presentation. This disease is diagnosed by its characteristic X-ray finding and is confirmed by histololgic examination. Recently, Magnetic Resonance (MR) images have been used to evaluate disease activity and to understand soft tissue pathoanatomy in melorheostosis. The authors evaluated the activity of the melorheostosis indirectly with MR imaging and achieved a good symptomatic result with conservative treatments.