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Case Reports in Otolaryngology
Volume 2015 (2015), Article ID 590783, 3 pages
http://dx.doi.org/10.1155/2015/590783
Case Report

Osteoma Presenting as a Painless Solitary Mastoid Swelling

1Department of Otorhinolaryngology, Faculty of Medicine, Cairo University, Cairo, Egypt
2Department of Otorhinolaryngology, Sultan Qaboos Hospital, Salalah, Oman

Received 2 October 2014; Accepted 28 December 2014

Academic Editor: Yorihisa Orita

Copyright © 2015 Hazem M. Abdel Tawab et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Introduction. Osteoma of the temporal bone is a very uncommon benign tumor of bone. Osteomas may occur in the external auditory canals but are reported to be very rare in the mastoid bone. Case Report. A 36-year-old male presented to our department with a hard swelling behind the right ear diagnosed as osteoma. Complete excision was done through a postauricular approach. Histopathology confirmed the diagnosis of osteoma. Conclusion. Osteomas, although rare, should be considered when dealing with any hard mastoid swelling. Complete removal can be ensured by drilling till the normal cortical bone is reached to avoid recurrence. A cortical mastoidectomy should be done if the mastoid air cell system is involved.