Metastasis of parotid adenocarcinoma to the external auditory canal

Ear Nose Throat J. 2022 Mar 29:1455613221086033. doi: 10.1177/01455613221086033. Online ahead of print.

Abstract

Metastatic carcinoma of the external auditory canal (EAC) is extremely rare. Herein, we report the first case of a patient with metastasis of parotid adenocarcinoma to the EAC. Clinicians should include it in the differential diagnosis of tumors of the EAC. In patients with parotid carcinoma, a physical examination of the entire head and neck, including the EAC, should be performed before surgery.

Keywords: Adenocarcinoma; Ear canal; External auditory canal; Metastatic neoplasms; Parotid neoplasms.