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. 2001 Apr;22(4):751–754.

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fig 3. — A and B, Selective injections of the internal carotid artery distributions performed in 1999 after immunosuppresant/corticosteroid therapy.

Selected anteroposterior projection of the left internal carotid artery (A) and anteroposterior projection of the selected right internal carotid artery injection (B) show prominent ectasia (arrowheads) within the M1 segment of left MCA. Severe occlusive disease (arrow) is noted within the left MCA distribution. Compared with the angiographic images of 1997, the ectasis in the left M1 segment of the MCA is more prominent as is the stenotic portion of this vessel. The stenosis of the M1 segment of the right MCA has improved (arrow).