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Pronunciation: plat'i-ba'se-a

Definition: A developmental anomaly of the cranium or an acquired softening of the cranial bones so that the floor of the posterior cranial fossa bulges upward in the region about the foramen magnum.

Synonym(s): basilar invagination

[platy- + G. basis, ground]

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.