Psammomatoid ossifying fibromas (POF) of the skull, a rare presentation: Case report and review of the literature

Psammomatoid ossifying fibromas (POF) represent a rare and unique subtype of fibro-osseous lesions with predilection for the paranasal sinuses and orbits. They have specific histopatholgic features with tendency toward local aggressive behavior with invasion and destruction of adjacent anatomic structures. Symptoms include proptosis, facial swelling, nasal obstruction, pain, sinusitis and headaches, depending on the location of the lesion [1]. Secondary extension to the skull or cranial fossa can occur from a sinonasal origin, but a primary location within the cranium is rare [2]. We describe a case of POF involving primarily the right frontal bone of a 10 year-old boy.