Intracranial arteriovenous malformation
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A 28-year-old man with a childhood history of spontaneous intracranial hemorrhage presented with a new onset of seizures and loss of consciousness. At the age of 10 years, he had undergone partial resection of a right-sided intracranial arteriovenous malformation, which resulted in left hemiplegia. He was completely blind in the right eye, and visual acuity in the left eye was 20/20 with a temporal hemianopic field defect. Computed tomography without contrast material revealed a new acute intraparenchymal hemorrhage (Panel A, arrow) adjacent to an area of encephalomalacia (Panel A, arrowhead) on the right. Angiography showed a residual arteriovenous malformation (Panel B, black arrow), with an additional intracranial arteriovenous malformation located in the inferior aspect of the anterior cranial fossa (Panel B, blue arrow) to the right of the midline, which was fed by branches of the ophthalmic artery and right inferolateral trunk (Panel B, arrowhead). Ophthalmoscopic examination revealed a retinal arteriovenous malformation in the right eye (Panel C), whereas the left eye was normal. The patient underwent surgical correction of the intracranial arteriovenous malformation...

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