Arthropathy, also known as joint ankylosis of the pelvic region and thigh, is related to neurogenic arthropathy and familial calcium pyrophosphate deposition, and has symptoms including arthralgia, back pain and metatarsalgia. An important gene associated with Arthropathy is PRG4 (Proteoglycan 4), and among its related pathways/superpathways are Innate Immune System and Cytokine Signaling in Immune system. The drugs Magnesium sulfate and Betamethasone have been mentioned in the context of this disorder. Affiliated tissues include bone and bone marrow, and related phenotypes are homeostasis/metabolism and growth/size/body region