DOI QR코드

DOI QR Code

Unusual Tumors Obstructing the External Auditory Canal: Report of Two Cases

  • Kim, Chang-Hee (Department of Otorhinolaryngology-Head and Neck Surgery, Konkuk University Medical Center, Konkuk University School of Medicine) ;
  • Lee, Hye Seung (Department of Pathology, Konkuk University Medical Center, Konkuk University School of Medicine) ;
  • Kim, Sung-Yong (Department of Hemato-Oncology, Konkuk University Medical Center, Konkuk University School of Medicine) ;
  • Shin, Jung Eun (Department of Otorhinolaryngology-Head and Neck Surgery, Konkuk University Medical Center, Konkuk University School of Medicine)
  • 투고 : 2018.01.22
  • 심사 : 2018.05.02
  • 발행 : 2019.01.20

초록

Primary tumors arising from the external auditory canal (EAC) are rare. We describe two cases of mass lesions within the EAC causing slowly progressive hearing loss without otorrhea or otalgia. Otoendoscopic examination demonstrated total obstruction of the EAC, and pure tone audiometry revealed conductive hearing loss. Based on the findings of the histopathologic examination, one patient was diagnosed with venous hemangioma that was treated using surgical resection, and the other patient was diagnosed with diffuse large B-cell lymphoma (DLBCL) that was treated using external-beam radiation therapy. Although primary tumors in the EAC are rare, both benign tumors such as venous hemangiomas and malignant lesions such as DLBCL should be considered as possible differential diagnoses of mass lesions in the EAC.

키워드

과제정보

This paper was written as part of Konkuk University's research support program for its faculty on sabbatical leave in 2014.