Masses of the Paranasal Sinuses After Treatment of Nasopharyngeal Carcinoma: A Case Report

Abstract

The development of a new mass in the field of irradiation of a previously treated Nasopharyngeal carcinoma is generally considered a sign of recurrence. We report a case of a 46-year-old male, with a past history of undifferentiated NPC, with an expansive lesion discovered during radiological follow-up that occupied nasal cavity and paranasal sinuses. The endoscopic sinuses surgery was necessary in order to analyze and remove the mass with intraoperative frozen sections to highlight mucosa free from disease. The presence of non-malignant masses in the paranasal sinuses are rare complications after radiotherapy at the skull base, but represent an eventuality that must be considered in the differential diagnosis of a suspected recurrence or with a secondary malignancies after radiation therapy. It is therefore required a final diagnosis based on biopsy, follow-up and an eventual endoscopic surgical treatment.

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