Fibro-osseous lesions comprise a diverse group of pathological conditions including developmental lesions, reactive or dysplastic diseases and neoplasms. Fibrous dysplasia is a benign pathologic condition of bones,where normal bone is replaced by fibrous connective tissue. Osseous dysplasia is the second most common form of benign fibro-osseous lesion in the jawbones. These lesions only develop in tooth-bearing regions.

Keywords : Fibrous Dysplasia, Cherubism, Ossifying fibroma, central giant cell granuloma