title: The costoclavicular joint.
abstract: Two patients with a costoclavicular joint were discovered by chance during a survey of cervical spines. These seem to be the first to be described in the radiological literature. No other case was found in a further review of 500 consecutive spine radiographs. The costoclavicular joint is a variant of the ligamentous connection between the medial part of the clavicle and the first rib.
mesh_terms: D002968:Clavicle / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007596:Joints / Q000033:anatomy & histology*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012272:Ribs / Q000033:anatomy & histology / Q000000981:diagnostic imaging*