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Spontaneous bilateral vertebral artery dissection complicated by hemodynamic posterior circulation stroke: A case report.
Radiol Case Rep
March 2025
Neuroradiology department, Hospital of specialities, Ibn Sina university hospital center, Rabat, Morocco.
Bilateral vertebral artery dissections account for only 8% of all vertebral artery dissections and cause just 2% of all ischemic strokes. They can occur spontaneously, even without any triggering factor. Classical clinical findings, such as headache or neck pain, may be absent, particularly in the context of a stroke.
View Article and Find Full Text PDFReplaced right posterior cerebral artery associated with ipsilateral superior cerebellar artery type persistent trigeminal artery variant diagnosed by magnetic resonance angiography.
Surg Radiol Anat
December 2024
Department of Neurosurgery, Saitama Sekishinkai Hospital, 2-37-20 Irumagawa, Sayama, Saitama, 350-1305, Japan.
Purpose: To describe a case in which a right replaced posterior cerebral artery (PCA) was associated with an ipsilateral superior cerebellar artery (SCA) type persistent trigeminal artery (PTA) variant.
Methods: A 53-year-old man who had been diagnosed with chronic dissection of the left vertebral artery (VA) 4 months previously underwent follow-up magnetic resonance (MR) angiography using a 3-Tesla scanner.
Results: MR angiography showed a slightly dilated left VA at the terminal segment without interval change.
Management of complex vertebral artery anatomy in craniocervical surgery: A case report.
Surg Neurol Int
November 2024
Department of Neurosurgery, National Ribat University, Khartoum, Sudan.
Background: The surgery on the craniocervical junction is associated with complex techniques that endanger the vertebral artery (VA), especially if there are some anatomical variations present, thereby increasing the risk of vascular injury, particularly during cervical decompression or instrumentation.
Case Description: A case of a 60-year-old female with progressive myelopathy and craniocervical junction malformation is presented. Key preoperative imaging findings included basilar invagination, C1 assimilation, and os odontoideum, along with VA anomalies such as a tortuous, hypoplastic left VA arising anomalously from the aortic arch and a right VA with a V2 segment forming a high-riding medial loop into the C2 vertebral body.
Persistent proatlantal intersegmental artery: a consideration based on multi-slice spiral computed tomography angiography.
Surg Radiol Anat
December 2024
Department of Neurology, The Second People's Hospital of Banan District, Chongqing, 400042, China.
Background: Multi-slice spiral computed tomography (CT) angiography (MSCTA) has become the primary non-invasive image technique for evaluating cephalic and cervical vascular anatomy, especially vascular variant such as persistent carotid-basilar anastomosis. Persistent proatlantal intersegmental artery (PPIA) is an example of a rare persistent carotid-basilar anastomosis that deserves to be featured through this imaging technic.
Purpose: The aim of this study is to explore the imaging characteristics of the PPIA using MSCTA and to assess its clinical significance.
Left vertebral artery arising from the external carotid artery: an uncommon anatomical variant.
Surg Radiol Anat
November 2024
Department of Radiology, Division of Neuroradiology, Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia.
Article Synopsis
- - The study focuses on a rare case where a patient's left vertebral artery originates from the left external carotid artery, highlighting its embryological background.
- - The case involved a 55-year-old male with sepsis who underwent CT and CT angiography, revealing a unique vertebral artery anatomy, while his right vertebral artery was underdeveloped (hypoplastic).
- - The findings indicate that such anatomical variations are usually asymptomatic but are important for medical professionals to recognize for accurate diagnosis and effective treatment planning.
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