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Unusual Tumors of the Ear Canal

  • Paul W. Gidley
Chapter

Abstract

While squamous cell carcinoma and basal cell carcinoma account for the vast majority of ear canal tumors, there remain a number of rare and unusual tumor types that occur within the ear canal. This chapter describes the anatomy of the ear canal, especially with respect to the ceruminous glands, which are the source of these unusual tumors. Benign and malignant tumors are described. Adenocarcinoma and adenoid cystic carcinoma are discussed due to their common origin from cerumen glands in the external ear canal.

Keywords

Ear canal Cerumen glands Ceruminous adenoid cystic carcinoma Ceruminous adenocarcinoma Ceruminous adenoma Ceruminous mucoepidermoid carcinoma Pleomorphic adenoma 

Abbreviations

ACC

Adenoid cystic carcinoma

CT

Computerized tomography

EAC

External auditory canal

ELST

Endolymphatic sac tumor

MEC

Mucoepidermoid carcinoma

MRI

Magnetic resonance imaging

PET/CT

Positron emission tomography/computerized tomography

PORT

Postoperative radiotherapy

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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Head and Neck SurgeryThe University of Texas M.D. Anderson Cancer CenterHoustonUSA

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