Some vagaries of the radial head and neck.
D000375:Aging; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011859:Radiography; D011884:Radius / Q000000981:diagnostic imaging* / Q000254:growth & development / Q000293:injuries; D011885:Radius Fractures / Q000000981:diagnostic imaging