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. 2026 Mar 9;11(10):CASE25864. doi: 10.3171/CASE25864

FIG. 1.

FIG. 1.

A: Spinal MR image showing no obvious findings. B: Selective spinal angiogram revealing contrast enhancement from the left T10 intercostal artery to the artery of Adamkiewicz (white arrows). No conus basket was observed (double arrowheads), and mild flexion of the ASA was observed at the T11 level (yellow arrow). C: Microcatheter image (anteroposterior view; double asterisks) revealing an AVS at the T10–11 level (yellow arrow), the T12 radiculomedullary vein (single arrowhead), and the vein of the filum terminale (double arrowheads) beyond the conus tip. D: Microcatheter image (lateral view; double asterisks) demonstrating an AVS at the T10–11 level (yellow arrow) and the vein of the filum terminale (double arrowheads) beyond the conus tip (single asterisk).