[When to think about pediatric congenital pseudoarthrosis of the clavicle? Presentation of 2 cases].

The congenital pseudoarthrosis of the clavicle is a rare and benign malformation, characterized by the absence of the middle third of the clavicle. It is usually unilateral and the majority on the right side. The etiology is unknown, postulating diverse etiopathogenic theories (vascular, embryological and genetic). It can be detected in the neonatal period or, more frequently, during childhood. Occasionally it can be symptomatic. It may require treatment by surgical reconstruction by bone graft. Two cases are presented, one of neonatal diagnosis and another one of 3 years of age performed with 24 hours of difference. We emphasize on its consideration as a differential diagnosis of obstetric or post-traumatic fracture, cleidocranial dysplasia and neurofibromatosis type I.