Lesch-Nyhan syndrome.
D002675:Child, Preschool; D006801:Humans; D007926:Lesch-Nyhan Syndrome / Q000175:diagnosis / Q000473:pathology; D008297:Male; D012652:Self Mutilation / Q000517:prevention & control*; D014081:Tooth Extraction; D014094:Tooth, Deciduous / Q000601:surgery