1naresh
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Patient/AVM Clinical Presentation Location (Lobes) Extension (Parenchymal) Size (ml) Venous Drainage High Flow, Fistula Spetzler-Martin Grade Bleeding 10 Frontal 3 Cortical 5 <6 6 Cortical (c) 14 9 I 4 Temporal 4 WM 5 6–10 2 Single 4 II 5 ICH 6 Parietal 4 Mixed (C+WM) 9 >10–20 8 Multiple 10 III 6 IVH 1 Occipital 2 Intraventr. 1 >20 5 Deep (D) 2 IV 6 EDH 1 Mixed* 5 Dural 1 Mixed (C+D) 5 V 0 SAH 2 Cerebellar 2 Epilepsy 6 Dural 1 (venous ectasia 9/21 (±f.stenos)) Incidental finding 5 21 21 21/21 21 21 9/21 21
Note:—
Mixed* indicates extending into more than one lobe; WM, white matter; Mixed (c+wm), located cortical and in the white matter (deep location); Intraventr, intraventricular location; Mixed (c+d), mixed cortical and deep venous drainage; F.stenos, functional stenosis; Spetzler-Martin grades I–V (according to size, location, and venous drainage).