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Solitary fibrous tumor (SFT) belongs to a group of mesenchymal tumors, first described as a primary spindle cell tumor of the pleura in 1931. Recently, SFT has been reported in various locations with no relation to serosal surface, such as the mediastinum, head and neck, orbit and urogenital system. Histopathologically, the tumors have a disorganized or "patternless" arrangement of spindle cells in a collagenous background and prominent vascular channels of varing size. To date, only 22 cases of SFT arising from the nasal cavity and paranasal sinuses have been reported in the world literature. We report a case of SFT localized in the right nasal cavity with extension to the right ethmoid sinus with a review of literature.
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