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Neuroendocrine carcinomas of the head and neck are rare and are classified as well differentiated, moderately differentiated, and poorly differentiated carcinomas with the latter category being subdivided into small cell and large cell neuroendocrine carcinoma (LCNEC). While most carcinomas in the nasopharynx are associated with Epstein-Barr virus (EBV), there has been only one previous report demonstrating a link between EBV and LCNEC of the nasopharynx. In this report we describe a second case of EBV-positive LCNEC arising in the nasopharynx with bilateral cervical metastases. The patient was treated with a combination of radiation and chemotherapy which resulted in a complete clinical and radiological response. The patient is still disease free 3 years after presentation. The results of this case suggest that EBV-positive LCNEC is sensitive to chemoradiotherapy and as a result may have better prognosis than EBV-negative LCNEC arising in the nasopharynx or other sites.

head and neck pathology

Epstein-Barr Virus-Positive Large Cell Neuroendocrine Carcinoma of the Nasopharynx: Report of a Case with Complete Clinical and Radiological Response After Combined Chemoradiotherapy