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MRI characterization of the glenohumeral joint in Apert syndrome.

McHugh T, Wyers M, King E

Department of Radiology, University of Illinois-Chicago, Chicago, IL, USA.

The features of craniosynostosis, facial dysmorphism, and distal extremity syndactyly in Apert syndrome are well known. However, there have been limited descriptions of the associated glenohumeral joint findings. We report the radiographic and MRI abnormalities of the glenohumeral joints in a 10-month-old girl with Apert syndrome. The MRI findings in the girl support the hypothesis that the pathogenesis of Apert syndrome is caused by defective cartilage segmentation with premature and abnormal ossification of a cartilage bar within a joint space. The resultant shoulder joint deformity is related to glenoid hypoplasia and growth arrest of the medial aspect of the humeral head.

Published 9 May 2007 in Pediatr Radiol, 37(6): 596-9.
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