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FIG 7. Distal occlusion of large SMCV. Brain is protected by collateral branch. A, A large collateral branch is connected to the vein of Labbé (small black arrows). Distal SMCV is depicted by white arrow. B, Occlusion of veins distally (white arrow) is protected by collaterals (black arrows). C, Postoperative CT scan is unremarkable, without significant brain edema or hemorrhage.
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