“…Calcium pyrophosphate dihydrate (CPPD) crystal deposition disease is an inflammatory pyrophosphate arthropathy especially affecting the middle-aged and elderly population [1,7,10]. This well-defined disorder most frequently involves the knee, wrist, shoulder, hip, and ankle joints [1,4,7,10,11,13]. The main feature of the disease is the calcification of fibrous and hyaline cartilage [1,5,13].…”