An ossifying fibroma presenting as Stafne's idiopathic bone cavity.

The purpose of this paper is to present a case of a fibro-osseous lesion which was diagnosed as an ossifying fibroma rather than a cemento-ossifying fibroma because of its location away from the tooth bearing parts of the jaw and the absence of cemental tissue in the excised specimen. Its location and features on a panoramic radiographic made Stafne's idiopathic bone cavity a possible diagnosis.