LIFE THREATENING INTRACRANIAL COMPLICATIONS OF FRONTAL-SINUS OSTEOMAS- REPORT OF 2 CASES

Paranasal sinuses osteomas are known as biological benign tumours. How ever, due to the peculiar anatomical relationships, patients harbourin g an osteoma within the frontal sinus are exposed to serious orbital a nd intracranial complications. We report two unusual cases of intracra nial mucocoeles associated with frontal osteomas. In one of them, a su perposed tension aerocoele required emergency surgery. Although aggres sive treatment of asymptomatic osteomas is not warranted, these lesion s must be carefully observed and resected as soon as they show clinica l and/or radiological signs of progression. The physiopathological and clinical aspects are discussed.