Absence of the lunate.
D000293:Adolescent; D002356:Cartilage / Q000473:pathology; D005260:Female; D006801:Humans; D009999:Ossification, Heterotopic; D011859:Radiography; D018805:Sepsis; D013203:Staphylococcal Infections / Q000150:complications; D014953:Wrist / Q000002:abnormalities* / Q000000981:diagnostic imaging*