Osteoarthritis with Mild Chondrodysplasia, also known as namaqualand hip dysplasia, is related to polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy 1 and arthropathy, and has symptoms including angina pectoris, back pain and muscle cramp. An important gene associated with Osteoarthritis with Mild Chondrodysplasia is COL2A1 (Collagen Type II Alpha 1 Chain). Affiliated tissues include bone, and related phenotypes are joint stiffness and beaking of vertebral bodies