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Introduction. Optic pathways cavernomas are rare vascular hamartomas that can present either with an acute chiasmai syndrome or slowly progressive visual loss . Observation. A 29-year-old patient presented with mild unilateral visual los s of rapid onset and monocular left temporal hemianopia. MRI disclosed a heterog enous enhancing optochiasmal lesion. Work-up found no evidence for an inflammat ory, infectious or tumoral disease and therefore a neurosurgical approach of the lesion allowed diagnosis of cavernoma, confirmed by pathological examination. S uccessful resection resulted in partial recovery of the visual field. Conclusion . Optochiasmal cavernomas are rare, removal can improve visual outcome.
Introduction. Optic pathways cavernomas are rare vascular hamartomas that can present either with an acute chiasmai syndrome or slowly progressive visual loss. Observation. A 29-year-old patient presented with mild unilateral visual Los s of rapid onset and monocular left temporal hemianopia. MRI disclosed a heterog enous enhancing optochiasmal lesion. Work-up found no evidence for an inflammat ory, infectious or tumoral disease and therefore a neurosurgical approach of the lesion allowed diagnosis of cavernoma, confirmed by pathological examination. S uccessful resection resulted in partial recovery of the visual field. Conclusion. Optochiasmal cavernomas are rare, removal can improve visual outcome.