Clinical study of 32 cases of nasal and paranasal sinus inverted papilloma

We clinically examined 32 subjects- 25 men and 7 women (median age: 65 years)- with inverted nasal and paranasal sinus papilloma seen between 1997 and 2010. Krouse classification confirmed, 6 as T1, 7 as T2, 18 as T3, and 1 as T4. The 31 subjects with T1, T2 and T3 underwent surgery, and the remaining T4 subject chemoradiation. Recurrence occurred in 6 of the surgical cases (recurrence rate: 19%). Reducing post operative recurrence requires that magnetic resonance imaging and computed tomography, identify tumor origin and extent and that endoscopic examination confirm total surgical excision. (author)