A Case of Merkel Cell Carcinoma of the External Auditory Canal Skin with Annulus and Tympanic Membrane

Merkel cell carcinoma is an extremely rare neuroendocrine neoplasm of the external auditory canal (EAC) skin, which requires wide excision and adjuvant radiation due to a high recurrence rate. In this report, we describe case arising from EAC was successfully treated with endoscopic excision. A 32-years-old female patient history papillary thyroid cancer diagnosed tumor incidentally. There erythematous papular lesion on posterior without any evidence locoregional metastasis. The underwent resection under general anesthesia, final pathologic report confirmed diagnosis carcinoma. no clinical or radiographic metastasis for 41 months after surgical alone.