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A, Anteroposterior DSA before treatment. B, DSA after device deployment shows complete immediate cessation of flow. Note radiopaque distal (block arrow) and proximal markers (black arrow) denoting the ends of the device. C, DSA at 3 months shows complete aneurysm occlusion. D, Photomicrograph (HE, original magnification ×100) shows organized connective tissue within the aneurysm lumen and attenuated connective tissue across the aneurysm neck (block arrow).
