Case report 244. Down syndrome (trisomy 21).
D000293:Adolescent; D001268:Atlanto-Axial Joint / Q000000981:diagnostic imaging / Q000293:injuries*; D004314:Down Syndrome / Q000000981:diagnostic imaging*; D006617:Hip Dislocation / Q000000981:diagnostic imaging*; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging*; D008297:Male; D011859:Radiography