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Polycythaemia Vera Causing Cerebral Venous Thrombosis

Cerebral venous thrombosis has been associated with many congenital and acquired hypercoagulable states. Included in this long list are thrombocytosis, polycythaemia vera, and remote infections. This case is being presented for the rarity of association of polycythaemia vera leading to sagittal venous thrombosis and central retinal venous occlusion (CRVO) with grade II papilloedema in a nonsmoker young adult with normal platelet count.