Korean Journal of Otorhinolaryngology-Head and Neck Surgery

Korean Society of Otolaryngology-Head and Neck Surgery (대한이비인후과학회)
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A Case of Epidermal Cyst Occurred in the Bony External Auditory Canal Misdiagnosed as External Auditory Canal Carcinoma

외이도 암으로 오인된 외이도 골부에 발생한 표피 낭종 1예

  • Lim, Sung Hwan (Department of Otolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center) ;
  • Koo, Beom Mo (Department of Otolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center) ;
  • Park, Po Na (Department of Otolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center) ;
  • Cho, Hyun Sang (Department of Otolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center)
  • 임성환 (중앙보훈병원 이비인후과) ;
  • 구범모 (중앙보훈병원 이비인후과) ;
  • 박보나 (중앙보훈병원 이비인후과) ;
  • 조현상 (중앙보훈병원 이비인후과)
  • Received : 2018.03.27
  • Accepted : 2018.07.04
  • Published : 2018.12.25
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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.

Keywords

References

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