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^1,2,5Ankara Numune Education and Research Hospital, Department of Neurosurgery, Ankara, Turkey
³Abant Izzet Baysal University School of Medicine, Department of Neurosurgery, Bolu, Turkey
⁴Baskent University School of Medicine, Department of Pathology, Ankara, Turkey Glioblastoma multiforme is the most common intracranial neoplasm of all primary central nervous system tumors. Glial tumors can present in different forms. Intracranial hemorrhage may occur in all central nervous system tumors to a varying degree and extent and may even be massive. A 58-year-old man presented with intraparenchymal hemorrhage manifesting as severe headache and vomiting. Cranial computed tomographic scans revealed a right posterior temporoparietal intraparenchymal hemorrhage. Cerebral angiography revealed a 3x2 cm right inferior parietal arteriovenous malformation. The patient underwent surgical treatment with a diagnosis of arteriovenous malformation. Postoperatively, the histological diagnosis was glioblastoma. Glioblastoma may mimic an arteriovenous malformation. Close follow-up of such patients is essential. Keywords : Glioblastoma multiforme, Arteriovenous malformation, Temporoparietal, Intraparenchymal hemorrhage