A Rare Case of a Nasopharyngeal Mass

A man in his 50s with a history of chronic hepatitis C, hypothyroidism, and alcoholism presented to the outpatient clinic complaining of nasal congestion and epistaxis; nonenhanced computed tomography of the paranasal sinuses revealed a soft-tissue mass extending from the nasopharynx into the left sphenoid sinus with erosion of the sphenoid sinus floor and the clivus. What is your diagnosis?

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