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Mastoidectomy - series—Normal anatomy

Normal anatomy

Overview

Mastoid air cells are open, air-containing spaces in one of the skull bones.

Review Date 5/17/2018

Updated by: Josef Shargorodsky, MD, MPH, Johns Hopkins University School of Medicine, Baltimore, MD. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.