Sinonasal papillomas: histologic types and our treatment results

Abstract

Objectives:Assessment of sinonasal papilloma, histologic variant, surgical approaches and clinical behavior of variants retrospectively.Methods:xSeventeen sinonasal papilloma patients that were operated between 1989-2002 in Department of Otorhinolaryngology, Cerrahpafla Medical School, University of Istanbul are reviewed and pathological assessment done.Results:Pathological assessment revealed 14 inverted papillomas, 2 oncocytic Schneiderian papillomas, 1 fungiform papilloma. Six patients (35.29%) developed recurrence after 9 to 45 months with a mean interval of 25 months. Five patients with inverted papilloma, one patient with Schneiderian papilloma recurred. There was pathological evidence of malignant transformation in 5 (29.4%) of the 17 sinonasal papilloma patients. All of them were inverted papillomas. There was a recurrence of 4 (50%) cases in 8 sinonasal patients of dysplasia. We find 3 of them inverted papillomas and one of them oncocytic Schneiderian papilloma. There was a malignant transformation of 3 (37.5%) cases in 8 sinonasal patients of dysplasia. There was not any recurrence or malignant transformation in one case of metaplasia. We have not seen any recurrence or malignant transformation in oncocytic Schneiderian papilloma and fungiform papilloma patients.Conclusion:In sinonasal papillomas we should always remember that whatever the histologic variant is, recurrence and malignant transformation could be seen. We should choose the surgical approach that gives the best exposition and full excision. After the surgical period the clinical surveillance should be done carefully, it is as important as the surgery.

Keywords

• inverted papilloma
• oncocytic schneiderian papilloma
• fungiform papilloma
• sinonasal
• pathology.