Aggressive psammomatoid ossifying fibromas of the sinonasal region. A clinicopathologic study of a distinct group of fibro-osseous lesions

Gnathic and midfacial fibro-osseous proliferations are a diverse group of lesions. A subset of these fibro-osseous lesions with predilection for the sinonasal tract were identified. These lesions are characterized by their distinctive histology, including psammomatoid ossicles and their locally aggressive growth. Complete surgical removal is the treatment of choice.