[The analysis of 42 observations of paranasal sinus osteoma]

The data on the incidence, localization, and histological structure of paranasal sinus osteoma (PSO) are reported along with the authors' experience in the diagnostics and surgical treatment of 42 patients presenting with this condition. The classification of the remote tumours based on their histopathological characteristics is considered. It is shown that 34 (80.9%) patients have osteomas of the compact type, 4 (9.5%) present with the tumours of the spongy type, and another 4 (9.5%) with the mixed type osteomas. It is maintained that the application of boron should be considered to facilitate the surgical removal of paranasal sinus osteomas.