Which surrounding soft tissues and nerves may be involved in severe cases of otitis externa (OE)?

Updated: Mar 09, 2020
  • Author: Ariel A Waitzman, MD, FRCSC; Chief Editor: Ravindhra G Elluru, MD, PhD  more...
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In severe cases, the infection may spread to the surrounding soft tissues, including the parotid gland. Bony extension may also occur into the mastoid bone, temporomandibular joint, and base of the skull, in which case cranial nerves VII (facial), IX (glossopharyngeal), X (vagus), XI (accessory), or XII (hypoglossal) may be affected.

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