title: Hajdu-Cheney syndrome.
abstract: Hadjdu-Cheney syndrome is a rare type of syndrome characterized by acro-osteolysis, dolichocephaly with multiple Wormian bones, absence of frontal sinuses and joint laxity. A case of this syndrome is presented. A histological study of the osteolytic lesion revealed destruction characterized by microfractures with a poor reparative process. It is postulated that an abnormality of osteoblast or osteoid function is the pathogenesis of this syndrome.
mesh_terms: D000015:Abnormalities, Multiple; D000293:Adolescent; D001848:Bone Diseases, Developmental; D005145:Face; D006801:Humans; D007596:Joints / Q000002:abnormalities; D008297:Male; D013577:Syndrome