Compressive Olfactory Meningiomas About a Case at the CMCAB Ophthalmology Unit

Abstract

This article reports a case of compressive olfactory meningioma seen at the CMCAB Ophthalmology Unit. Compressive olfactory meningiomas are benign intracerebral tumors that develop from arachnoid meningothelial cells and, according to the literature, represent 13 to 33% of primary intracerebral tumors. The patient was a 46-year-old military man with a history of hypertension, seen for reduced visual acuity (BAV) and chronic headaches lasting two years. Uncorrected visual acuity was counting fingers (CLD) at 5 m in the right eye and 5/10 in the left eye. The anterior segment and intraocular pressure were normal in both eyes, while examination of the posterior segment found papillary excavation, bilateral peripapillary atrophy and arterial narrowing. Optical coherence tomography (OCT) revealed bitemporal hemianopia, and computed tomography revealed a large compressive olfactory meningioma. After surgery, uncorrected visual acuity was 4/10 in the right eye and 5/10 in the left eye. Citing literature reporting a higher frequency in women, 76% of meningiomas occurring after the age of 50 and a mostly benign nature, the authors note that visual acuity and the low scalability of the meningioma must be taken into account before deciding on surgery. They conclude that compressive olfactory meningiomas cause irreversible blindness if not treated in time and call for close collaboration between the ophthalmologist and the neurosurgeon before the intervention.

Abstract prepared by the editorial office from the full text of the article; the authors did not supply one.