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KMID : 0361020210640070500
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Korean Journal of Otolaryngology - Head and Neck Surgery
2021 Volume.64 No. 7 p.500 ~ p.504
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A Case of Merkel Cell Carcinoma of the External Auditory Canal Skin with Annulus and Tympanic Membrane
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Cho A-Ra
Jang Mi
Moon In-Seok
Shin Seung-Ho
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Abstract
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Merkel cell carcinoma is an extremely rare neuroendocrine neoplasm of the external auditorycanal (EAC) skin, which requires wide excision and adjuvant radiation due to a high recurrencerate. In this report, we describe a case of Merkel cell carcinoma arising from the EACwhich was successfully treated with endoscopic excision. A 32-years-old female patient with ahistory of papillary thyroid cancer was diagnosed with an EAC tumor incidentally. There wasa erythematous papular lesion on the posterior EAC without any evidence of locoregional metastasis.
The patient underwent endoscopic tumor resection under general anesthesia, and thefinal pathologic report confirmed the diagnosis of Merkel cell carcinoma. There was no clinicalor radiographic evidence of recurrence or metastasis of Merkel cell tumor for 41 monthsafter surgical resection alone.
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KEYWORD
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External auditory canal, Merkel cell carcinoma, Prognosis
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