The anatomical pattern of the so called osteonecrosis of big joints.
D001842:Bone and Bones / Q000473:pathology*; D006801:Humans; D007717:Knee / Q000000981:diagnostic imaging* / Q000473:pathology; D009336:Necrosis / Q000473:pathology*; D011859:Radiography; D012782:Shoulder / Q000000981:diagnostic imaging* / Q000473:pathology