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Vertebral artery hypoplasia is not currently considered an independent risk factor for stroke. Emerging evidence suggest that vertebral artery hypoplasia may contribute to posterior circulation ischemic events, especially when other risk factors coexist. In the present literature review, we present published data to discuss the relationship between a hypoplastic vertebral artery and posterior c...

issection of the intracranial portion of the internal carotid artery (ICA) is an uncommon cause of stroke or transient ischemic attack (TIA). Congenital anomalies of the ICA have been rarely associated with cerebral ischemia. However, unilateral ICA hypoplasia can be frequently associated with intracranial arterial anomalies and altered hemodynamics.1 We describe the case of a woman who had sud...

The research is dedicated to the possibility of restoring cerebral blood supply in patients with brain vessels hypoplasia accompanied by migraine. The research involved 67 patients aged 29 58 (average age 42) with severe migraine. The examination plan included laboratory diagnostics, assessment of dementia severity (CDR), assessment of cognitive impairment (MMSE), cerebral computed tomography (...

The analysis of medical histories 129 patients aged 20 to 59 years, who suffered acute cerebrovascular disorders (AСVD) the ischemic type (IT), and participated in ATO-JFO was carried out. Anomalies cerebral arteries were found all them. A significant role hypoplasia right posterior artery, aplasia connective, left anterior as well pathological S-shaped tortuosity internal carotid vertebral the...

OBJECTIVE The aim of this study was to determine the prevalence of symmetry, asymmetry and hypoplasia of the intracranial internal carotid artery (ICA), and the possible presence of other variants of the ICA by magnetic resonance angiography (MRA). SUBJECTS AND METHODS This prospective-retrospective study included 1000 subjects who underwent consecutively MRA of the cerebral arteries. 3D-time...

Agenesis and hypoplasia of the internal carotid artery (ICA) are rare congenital anomalies, occurring in less than 0.01% of the population. We report a rare case of bilateral hypoplasia of the ICA in a patient with post-traumatic subarachnoid hemorrhage. We describe the embryological development of the cerebral vasculature and present a review of literature.

Anterior cerebral artery A1 segment hypoplasia is an uncommon fetal variant of the circle of Willis. The frequency of this congenital variation is 1-13% as derived from angiograms and autopsy reports. Impaired collateral blood flow through the circle of Willis is a recognized risk factor for ischemic stroke. The A1 segment of the anterior cerebral artery is a principal supplier of anterior coll...

Developmental midline abnormalities involving facial, optic, cranial, and cerebral structures are complex anomalies that require a multidisciplinary therapeutic approach. Radiologic evaluation requires identification of cerebral anatomy, orbital structures, facial bones, and the anterior fossa as well as the relationships of these structures to one another. We report an unusual combination of l...