title: The coracoclavicular joint.
abstract: The coracoclavicular joints are genetically determined anatomic variants. There are problems in determining their presence by dissection examination of osteologic material as well as by radiography. Based on a survey of published material and a prospective radiological survey carried out in Malaysia, it is clear that the anomaly is more frequent in Asia than in Europe and Africa. There is a high incidence in people from Southern China. The joints are subject to osteophytic marginal lipping without development of symptoms or disability.
mesh_terms: D000368:Aged; D001175:Arthrography; D002681:China; D002968:Clavicle / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007194:India; D007596:Joints / Q000033:anatomy & histology; D008296:Malaysia; D008297:Male; D008875:Middle Aged; D012540:Scapula / Q000033:anatomy & histology / Q000000981:diagnostic imaging*