A Case of Squamous Cell Carcinoma of the Bilateral External Auditory Canals.
10.3342/kjorl-hns.2017.00269
- Author:
Dong Won JUNG
1
;
Sung Wook JEONG
Author Information
1. Department of Otolaryngology-Head and Neck Surgery, Dong-A University College of Medicine, Busan, Korea. dau_su@naver.com
- Publication Type:Case Report
- Keywords:
Bilaterality;
External auditory canal;
Squamous cell carcinoma
- MeSH:
Carcinoma, Squamous Cell*;
Diagnosis;
Ear;
Ear Canal*;
Earache;
Epithelial Cells*;
Hearing Loss;
Otitis Externa;
Otitis Media;
Prevalence;
Prognosis;
Radiosurgery;
Tinnitus
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
2019;62(1):64-68
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
A malignant tumor of the external auditory canal (EAC) is a rare tumor, with a prevalence of between 1 and 6 people per 1 million population. Common symptoms of the EAC cancer include otorrhea, hearing loss, otalgia, or tinnitus, which are similar to symptoms of otitis media or otitis externa. Therefore, diagnosis may be delayed due to lack of EAC cancer-specific symptoms and the prognosis is also relatively poor despite intensive treatment. The most malignant tumor of the EAC is squamous cell carcinoma (SCC), which usully invades the ear unilaterally. SCC of bilateral EAC is extremely rare. We report here a rare case of bilateral EAC SCC. In this case, unilateral EAC SCC was treated via stereotactic radiosurgery and contralateral EAC SCC developed subsequently. This case implicates that radiosurgery can be a treatment option for EAC SCC but it may have carcinogenic effect. This case also shows that the ear should be examined bilaterally even when unilateral EAC cancer is encountered.
