PMC9070051_01
(A) Computed tomography angiography indicating short segment occlusion versus critical stenosis in the M2/M3 branch vessels of the rMCA. (B) Noncontrast MRI scan revealing a small evolving region of ischemia in the right insula adjacent to lesions in the CTA. (C) Complex interconnectivity of the insula with multiple circuits conveying interoceptive (blue area) sensorimotor (purple area), cognitive, emotional, and social functioning (red area). Reproduced and edited from Ghaziri et al. with permission from Wolters Kluwer Health, Inc. ACC, anterior cingulate cortex; MCC, medial cingulate cortex; NTS, nucleus of the solitary tract; PPC, posterior parietal cortex; preSMA, presupplementary motor area; PMv, ventral premotor cortex; S1, somatosensory area 1; S2, somatosensory area 2; SGN, suprageniculate nucleus; SMA, Supplementary motor area; STS, superior temporal sulcus; VMb, ventromedial basal nucleus; VMpo, ventromedial posterior nucleus; VPMpc, ventral posteromedial nucleus.
fpsyt-13-841072-g0001.jpg
PMC9070051_01_fpsyt-13-841072-g0001.jpg
F1
Computed tomographic angiography (CTA) with and without contrast revealed stenosis within multiple M2/M3 branch vessels of the right middle cerebral artery (rMCA) (Figure 1A). Noncontrast MRI of the brain revealed a small region of restricted diffusion in the right mid insular cortex consistent with evolving ischemia (Figure 1B).