LATE INTRACRANIAL EXTENSION OF A POST-TRAUMATIC FRONTAL MUCOCELE: A RARE CASE REPORT

Introduction:Mucoceles are defined as benign tumors that develop at the expense of the sinus mucosa caused by inflammatory obstruction of the sinus ostium, rarely post-traumatic or post-surgical.Despite their benign nature, these tumors have a powerful lytic potential on the bone walls of the sinuses and gradually spread to the orbit and skull, which can manifest as neurological signs, including neurological deficits or epileptic seizures.

Case report:This is a 48-year-old patient who was involved in a road accident in 1996, causingtrauma to the right frontal impact point and a fracture of the orbital roof. Twenty years after the head injury, he gradually developed frontal headaches with visual fogging on the right side and generalized tonic-clonic epileptic seizures. Clinical examination revealed a predominantly left frontal syndrome and slight right exophthalmos with downward displacement of the right eyeball.Brain MRI showed a T1 hyposignal and T2 hypersignal mass in the right frontal sinus with intracranial and orbital extension, consistent with a frontal mucocele. The EEG revealed paroxysmal abnormalities in the form of spikes and poly-spikes in the anterior hemispheres, predominantly in the right frontal lobe.The patient was placed on sodium valproate at a dose of 500 mg three times a day, and surgical treatment of the mucocele was planned.