Posterior Circulation Ischemic Stroke Secondary to High-Grade Glioma: A Rare Case Report and Review of the Literature.

Neurological deterioration or new focal deficits in patients with primary brain tumors are usually related to intratumoral hemorrhage, disease progression, seizures (Todd paralysis) and, rarely, ischemic stroke. Ischemic strokes in this group of patients are usually a postoperative complication, a long-term result of radiation vasculopathy, embolic due to hypercoagulability and, less commonly, caused by vessel occlusion by an adjacent brain tumor. We report a rare case of ischemic stroke secondary to a newly diagnosed high-grade glioma and the possible mechanisms that resulted in this medical condition.