A Case of Epidermal Cyst Occurred in the Bony External Auditory Canal Misdiagnosed as External Auditory Canal Carcinoma.
10.3342/kjorl-hns.2018.00192
- Author:
Sung Hwan LIM
1
;
Beom Mo KOO
;
Po Na PARK
;
Hyun Sang CHO
Author Information
1. Department of Otolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center, Seoul, Korea. ent-cho@nate.com
- Publication Type:Case Report
- Keywords:
Carcinoma;
Epidermal cyst;
External auditory canal
- MeSH:
Aged, 80 and over;
Dermis;
Diagnosis;
Diagnostic Errors;
Ear Canal*;
Epidermal Cyst*;
Hair;
Humans;
Inflammation;
Male;
Skin
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
2018;61(12):714-717
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Epidermal cysts are generally benign tumors that usually originate from the skin caused by inflammation of hair cortex and proliferation of epidermal cells within the dermis; however, for these cysts to occur in the bony external auditory canal (EAC) is rare. They are often present as a solitary, painless lesion and usually asymptomatic and the diagnosis depends on the results of the histological examination. In treatment, the cyst wall must be completely removed surgically. We recently encountered a 82-year-old male with a mass in the right EAC. An otoscopic examination showed a polypoid mass on the bony EAC, which was finally diagnosed as epidermal cyst after an initial misdiagnosis as EAC carcinoma. We report the rare, unique case with literature review.
