BACK TOTOP Browse A-ZSearchBrowse A-ZABCDEFGHIJKLMNOPQRSTUVWXYZ0-9 E-mail FormEmail ResultsName:Email address:Recipients Name:Recipients address:Message: Print-FriendlyBookmarksbookmarks-menuPetrositisPetrositis most often refers to infection of the petrous portion of the temporal bone, the bone in the skull that surrounds the ear. This infection goes deep to the inner ear. It is sometimes associated with otitis media (a middle ear infection).Otitis mediaChronic ear infection is fluid, swelling, or an infection behind the eardrum that does not go away or keeps coming back. It causes long-term or perm...Read Article Now Book Mark Article Open ReferencesReferencesBaloh RW, Jen JC. Hearing and equilibrium. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 400.Chole RA, Sharon JD. Chronic otitis media, mastoiditis, and petrositis. In: Flint PW, Francis HW, Haughey BH, et al, eds. Cummings Otolaryngology: Head and Neck Surgery. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 140.Mattingly JK, Chan KH. Complications of otitis media. In: Scholes MA, Ramakrishnan VR, eds. ENT Secrets. 4th ed. Philadelphia, PA: Elsevier; 2016:chap 38.AllVideoImagesTogRelated Information Ear infection - chronic(Condition)Ear infections(In-Depth) Review Date: 8/31/2021 Reviewed 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. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- © 1997- All rights reserved. A.D.A.M. content is best viewed in IE9 or above, Firefox and Google Chrome browser.Content is best viewed in IE9 or above, Firefox and Google Chrome browser.