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Erschienen in: Head and Neck Pathology 4/2021

11.03.2021 | Case Reports

Oropharyngeal Mixed Neuroendocrine-Nonneuroendocrine Neoplasm (MiNEN): A Case Report and Literature Review

verfasst von: Liam Robinson, Ciska-Mari Schouwstra, Willie F. P. van Heerden

Erschienen in: Head and Neck Pathology | Ausgabe 4/2021

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Abstract

Primary mixed neuroendocrine-nonneuroendocrine neoplasm (MiNEN) of the head and neck region is a rare biphasic tumor with an aggressive biological behavior. This report highlights an additional case of oropharyngeal MiNEN in a 46-year-old male patient with a previous long-term smoking history. Histologic evaluation revealed a biphasic tumor infiltrating the lamina propria. The first component consisted of a classic keratinizing squamous cell carcinoma. The second component consisted of small-to-intermediate sized cells with neuroendocrine features. Synaptophysin and CD56 immunohistochemical stains confirmed neuroendocrine lineage in this component. The presence of two morphological components with neuroendocrine and nonneuroendocrine features on histologic assessment should alert the pathologist to consider a MiNEN in their case work-up.
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Metadaten
Titel
Oropharyngeal Mixed Neuroendocrine-Nonneuroendocrine Neoplasm (MiNEN): A Case Report and Literature Review
verfasst von
Liam Robinson
Ciska-Mari Schouwstra
Willie F. P. van Heerden
Publikationsdatum
11.03.2021
Verlag
Springer US
Erschienen in
Head and Neck Pathology / Ausgabe 4/2021
Elektronische ISSN: 1936-0568
DOI
https://doi.org/10.1007/s12105-021-01312-w

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