Hybrid psammomatoid ossifying fibroma and aneurysmal bone cyst of frontal sinus

ABSTRACT

Psammomatoid ossifying fibroma is a rare slowly progressive tumour of the extragnathic craniofacial bones, with a tendency toward locally aggressive behaviour. The pathognomonic histologic feature is the presence of spherical ossicles which are similar to psammoma bodies. A fibro-osseous lesion composed of psammomatoid ossifying fibroma and aneurysmal bone cyst of the frontal sinus in a 12-year-old boy is reported, followed by a literature review. To our knowledge, this is the second case of a hybrid fibro-osseous lesion composed of ossifying fibroma and aneurysmal bone cyst to be reported in the literature