An 18-year-old male presented with severe proptosis and blindness in the right eye. Neuroimaging revealed a large and hypervascular tumor in the right retrobulbar region and a large tumor in the left cavernous sinus. Angiography showed the right tumor was extensively vascular, fed by a hypertrophic ophthalmic artery, and the left tumor was moderately vascular, fed by a large middle meningeal artery. Following embolization of the feeder vessels, the right retrobulbar hemangiopericytoma and the left cavernous sinus schwannoma were uneventfully and successfully resected. Such combinations of different pathological lesions present unusual therapeutic challenges.
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