Upward migration of the humeral head.
D000368:Aged; D005260:Female; D006801:Humans; D006811:Humerus / Q000000981:diagnostic imaging*; D007592:Joint Diseases / Q000150:complications; D008297:Male; D009132:Muscles / Q000293:injuries; D011859:Radiography; D012783:Shoulder Dislocation / Q000000981:diagnostic imaging*; D012785:Shoulder Joint