Congenital Pseudoarthrosis

Congenital pseudoarthrosis of the clavicle may he mistaken for a fracture. This condition is almost always right sided and rarely hilateral. It usually presents with a painless, palpable prominence in the mid-portion of the clavicle. Approximately half of all patients present in the first 2 weeks of life, the others during childhood. The differential diagnosis includes cleidocranial dysostosis or a birth injury. Radiographically there is a defect in the middle segment of the clavicle, and the ends of the bones are... 

Fig. 7.5. Typical appearances of congenital pseudoarthrosis of the right clavicle in a 5-week-old infant...

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