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. 2022 Jan 20;13:28. doi: 10.25259/SNI_1128_2021

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Copyright: © 2022 Surgical Neurology International

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Figure 1: — Computed tomography head with coronal noncontrast (a), coronal postcontrast (b), and sagittal postcontrast (c) images showing a well-defined heterogeneous lesion in the right parasagittal region (white arrows) with significant internal calcifications. Flow voids are suggestive of an arteriovenous malformation (AVM) with the nidus measuring approximately 3.8 × 3.4 × 3.7 cm. CTA with coronal reconstruction (d) confirms the location of the AVM in the right frontal parasagittal region (white arrowheads).