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. 2019 Jan 16;32(2):123–126. doi: 10.1177/1971400918825485

Figure 1.

Figure 1.

(a) Neck computed tomography angiogram (CTA) in patient one shows dissection of the right internal carotid artery (ICA) with wall non-enhancing intramural haematoma and 80% luminal narrowing (yellow arrow). (b) Neck CTA in patient two shows dissection of the left ICA with wall non-enhancing intramural haematoma and 50% luminal narrowing (yellow arrow). (c) T1-weighted fat-suppressed magnetic resonance imaging (MRI) in patient two shows crescentic hyperintense mural haematoma surrounding the left ICA with mild luminal narrowing (yellow arrow). This is in close proximity to the hypoglossal canal and exiting hypoglossal nerve (green arrows). (d) Neck CTA in patient three shows dissection of the left ICA with wall non-enhancing intramural haematoma and 75% luminal narrowing (yellow arrow). (e) T1-weighted fat-suppressed MRI in patient three shows crescentic intramural haematoma surrounding the left ICA (yellow arrow). There is also left tongue protrusion into the oral cavity (green arrow). (f) Patient four neck magnetic resonance angiography showing circumferential narrowing of the left ICA (yellow arrow) in the region of the left hypoglossal canal, in keeping with left ICA dissection.