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Neuroendocrine tumor of the sinonasal tract and paranasal sinuses

A neuroendocrine tumor (NET) is a rare type of cancer that arises from neuroendocrine cells in the nasal cavity or sinuses. Neuroendocrine cells normally produce hormones in response to nerve signals. Tumors formed by these cells can vary widely in their behavior, from slow-growing to highly aggressive. What are the symptoms of a neuroendocrine tumor …
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Sinonasal papilloma

What is a sinonasal papilloma? A sinonasal papilloma is a non-cancerous tumour that starts from the tissue that lines the inside of the nasal cavity and paranasal sinus. Pathologists divide sinonasal papillomas into three types: inverted, exophytic, and oncocytic. Another name for sinonasal papilloma is Schneidernian papilloma. Is sinonasal papilloma a type of cancer? No. …
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