Life threatening intracranial complications of frontal sinus osteomas: Report of two cases

Paranasal sinuses osteomas are known as biological benign tumours. However, due to the peculiar anatomical relationships, patients harbouring an osteoma within the frontal sinus are exposed to serious orbital and intracranial complications. We report two unusual cases of intracranial mucocoeles associated with frontal osteomas. In one of them, a superposed tension aerocoele required emergency surgery.