Multicentric Carpotarsal Osteolysis Syndrome, also known as multicentric carpo-tarsal osteolysis with or without nephropathy, is related to arthropathy and osteochondrodysplasia, and has symptoms including wrist pain and ankle pain. An important gene associated with Multicentric Carpotarsal Osteolysis Syndrome is MAFB (MAF BZIP Transcription Factor B), and among its related pathways/superpathways are Vitamin D receptor pathway and Tacrolimus/Cyclosporine Pathway, Pharmacodynamics. Affiliated tissues include bone and kidney, and related phenotypes are gait disturbance and proteinuria