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. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: Semin Ultrasound CT MR. 2021 Aug 1;42(5):463–473. doi: 10.1053/j.sult.2021.07.004

Figure 7: VWI of Primary Angiitis of the Central Nervous System.

Figure 7:

(A) A patient with a diagnosis of primary angiitis of the CNS shows flow-limiting stenosis of the right cavernous and supraclinoid internal carotid artery (ICA, bracket). Similar findings are seen in the contralateral left ICA. (B) Postcontrast T1w VWI shows avid concentric vessel wall thickening and enhancement of the stenotic ICA segments (right, arrowhead and left, arrow). (C) Coronal postcontrast T1w VWI confirms concentric vessel wall thickening and enhancement of the right supraclinoid ICA (arrowhead). By contrast, the right cavernous ICA (arrowhead) shows features of atherosclerotic plaque with eccentric wall thickening and a linear overlying enhancing rim favored to be a fibrous cap (arrow).