J Radiol
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The postnatal development of the central skull base is a complex process: at least 25 separate ossification centers are assimilated in the maturing sphenoid and occipital bones. Some synchondroses may only be partially fused and persist during adulthood. ⋯ Skull computed tomography demonstrated a rare anatomic variant: incomplete fusion of the spheno-occipital synchondrosis. Knowledge of the normal skull base development and of its variants may prove helpful in differentiating a post-traumatic injury from a normal variant.