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- Title
Fetal variant of posterior cerebral artery: just a physiologic variant or a window for possible ischemic stroke?
- Authors
Di Pietro, Martina; Di Stefano, Vincenzo; Cannella, Roberto; Di Blasio, Francesco; De Angelis, Maria Vittoria
- Abstract
Dear editor, Cerebral perfusion is guaranteed by the circle of Willis, an anastomotic polygon at the base of the brain, which connects the anterior and posterior circulation, provided by internal carotid arteries (ICAs) and vertebral arteries. 2 CT angiography with maximum intensity projection (MIP) on axial (a), sagittal (b), and coronal (c) planes depicts the left fetal origin posterior cerebral artery (fPCA), while the right posterior cerebral artery (PCA) normally originates from the basilar artery. Since CT angiography showed an occlusion of left ICA, we have hypothesized that the ischemic lesion of the left PCA territory may have resulted from insufficient perfusion from the anastomotic system in the distal branches of the PCA. The patient was transferred to a comprehensive stroke center for thrombectomy where, 1 hour later, head CT was repeated showing an ischemic lesion in the left occipital lobe, not reported in the previous CT images (Fig.
- Subjects
POSTERIOR cerebral artery; ISCHEMIC stroke; STROKE; INTERNAL carotid artery; CIRCLE of Willis; ANATOMICAL planes
- Publication
Neurological Sciences, 2021, Vol 42, Issue 6, p2535
- ISSN
1590-1874
- Publication type
Letter
- DOI
10.1007/s10072-020-05018-9