Vascular pathologies of the brain have different clinical, and neuroradiological manifestations which enable the establishment of definitive diagnosis preoperatively. We report a case of intracranial aneurysm presenting with epileptiform manifestations, and unusual magnetic resonance imaging (MRI) findings which preoperatively diagnosed as cerebral cavernous malformation. We have highlighted the possible mechanism of the unusual MRI appearance and differential diagnosis of the lesion.

Keywords: Intracranial aneurysm, cerebral cavernous malformation, cerebral vascular malformations, intracranial hemorrhage, chronic hematoma, hemosiderin rim