Inverted Papillomas: Retrospective Review

Objectives:Inverted papillomas are benign sinonasal tumors arising from Schneiderian mucosa. The inverted papillomas represent 0.5% to 4% of all sinonasal tumors. The purpose of this review was to analyze the patients with inverted papilloma treated in Hospital Prof. Doutor Fernando Fonseca, Portugal.Methods:A retrospective review was performed of patients with inverted papilloma over a 10‐year period.Results:The authors found 12 cases of inverted papilloma, mean age of 63 years old with male predominance. In collaboration with the neuroradiology department, the authors found 1 case in Stage I, 4 cases in stage II, 5 cases in stage III, and 2 cases in stage IV of Krouse's Staging System. The endoscopic surgical approach was used in 11 cases (combined with external approach in 7 cases) and isolated external approach in 1 case. The meantime of follow‐up was 28 months. There was recurrence in 4 cases and 1 had malignant transformation.Conclusions:The treatment of inverted papilloma is surgical, with the endoscopic approach the choice in the majority of the cases. A follow‐up for a long period is necessary. A larger number of cases for analysis would be necessary to confirm the review's results.