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Medical Term:

mastoid antrum

 

Definition: a cavity in the petrous portion of the temporal bone, communicating posteriorly with the mastoid cells and anteriorly with the epitympanic recess of the middle ear via the aditus to the mastoid antrum.

Synonym(s): antrum mastoideumTA, tympanic antrum, Valsalva antrum

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

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