A Case of Dysplastic Nevus of the External Auditory Canal Presenting with Conductive Hearing Loss

다국어 초록 (Multilingual Abstract)

A nevus which is a benign melanocytic neoplasm rarely occurs within the external auditory canal (EAC). A
dysplastic nevus presents atypical features both clinically and histologically, and is important as a potential
precursor for melanoma. We present a case of a 33-year-old female patient with a dysplastic nevus in her EAC.
Physical examination revealed a protruding mass arising from the posterior wall of the left cartilaginous EAC. The
mass showed clinically characteristic findings of a melanocytic nevus. The patient underwent excisional biopsy via
a transcanal approach under local anesthesia. Histopathological examination revealed an intradermal nevus with
atypical melanocytes without pleomorphism. There was no evidence of recurrence two years after surgical excision

다국어 초록 (Multilingual Abstract)

A nevus which is a benign melanocytic neoplasm rarely occurs within the external auditory canal (EAC). A
dysplastic nevus presents atypical features both clinically and histologically, and is important as a potential
precursor for melanoma. We present a case of a 33-year-old female patient with a dysplastic nevus in her EAC.
Physical examination revealed a protruding mass arising from the posterior wall of the left cartilaginous EAC. The
mass showed clinically characteristic findings of a melanocytic nevus. The patient underwent excisional biopsy via
a transcanal approach under local anesthesia. Histopathological examination revealed an intradermal nevus with
atypical melanocytes without pleomorphism. There was no evidence of recurrence two years after surgical excision

참고문헌 (Reference)

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