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suprameatal triangle

 

Definition: a triangle formed by the suprameatal spine, the inferior temporal line, and the vertical tangent to the posterior wall of the bony external auditory canal; used as a guide in mastoid operations to the mastoid antrum because the antrum lies directly medial to the suprameatal triangle.

Synonym(s): foveola suprameaticaTA, foveola suprameatalis, Macewen triangle, mastoid fossa, fossa mastoidea, supramastoid fossa, suprameatal pit

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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

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