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Complications in Occipitocervical Surgery.
Acta Neurochir Suppl
November 2024
Department of Neurosurgery, Koc University School of Medicine, Istanbul, Turkey.
The occipitocervical junction is formed by the foramen magnum (FM) and the adjacent anatomical structures of the C1 and C2 vertebrae. The FM is formed anteriorly by the basilar part of occipital bone. Anterolaterally, it borders the occipital condyles and hypoglossal canal as well as the jugular foramen.
View Article and Find Full Text PDFTransvenous embolization with detachable coils for a hypoglossal canal dural arteriovenous fistula: illustrative case.
J Neurosurg Case Lessons
November 2024
Departments of Neurosurgery, NYU Grossman School of Medicine, New York, New York.
Background: Hypoglossal canal dural arteriovenous fistulas (HCDAVFs) are a relatively rare subtype of dural arteriovenous fistula (dAVF), representing 3%-5% of all dAVFs. The complex angio- and venous architecture predisposed to numerous anastomoses and nearby anatomical structures, including the posterior fossa sinuses and cranial nerves, can complicate both the diagnosis and treatment of these lesions.
Observations: The authors describe the case of HCDAVF in a 74-year-old male who presented with pulsatile tinnitus (PT) lasting 3 months and significant fatigue, headaches, and dizziness.
The Occipital Recess of the Sphenoidal Sinus-A Novel Anatomical Possibility.
J Craniofac Surg
November 2024
Department of Anatomy, Faculty of Medicine, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania.
There are reported here multiple rare anatomical variants of the sphenoidal sinus found in a 53-year-old male. The sinus exhibited uncommon features, including a prominent occipital recess extending bilaterally into the basilar part of the occipital bone. A narrow posterior isthmus connected the main chamber to 2 recesses: a superior postsellar recess pneumatising the dorsum sellae, and a postero-inferior occipital recess.
View Article and Find Full Text PDFPersistent Hypoglossal Artery as a Rare Anatomical Variation Mimicking Carotid Artery Aneurysm: A Case Report.
Cureus
September 2024
Vascular and Endovascular Surgery, Vascular Surgery Clinic, Institute for Cardiovascular Diseases "Dedinje", Belgrade, SRB.
We present a case of a rare vascular variation of the persistent hypoglossal artery (PHA) in a 57-year-old Caucasian female patient with a medical history of poorly controlled hypertension, headaches, diabetes mellitus, and depression. This anatomical variation was initially misdiagnosed as an internal carotid artery (ICA) aneurysm during the extracranial carotid Doppler imaging conducted due to nonspecific symptoms of cerebrovascular insufficiency, manifesting as coordination disturbances. PHA is one of the four vertebrobasilar anastomoses, originating from the cervical segment of the ICA.
View Article and Find Full Text PDFV3 segment of the right vertebral artery taking an anomalous posterosuperior course and penetrating occipital bone (wall of the jugular foramen) diagnosed by magnetic resonance angiography.
Surg Radiol Anat
November 2024
Neuroscience Center, Suzuki Neurosurgical Clinic, 2082, Kasahata, Kawagoe, Saitama, 350- 1175, Japan.
Purpose: To describe a case of an anomalous posterosuperior course of the V3 segment of the right vertebral artery (VA) that penetrated the occipital bone (wall of the jugular foramen).
Methods: A 33-year-old healthy woman underwent cranial magnetic resonance (MR) imaging and MR angiography from the upper cervical to the intracranial region using a 3-Tesla scanner to screen for asymptomatic brain lesions, including cerebrovascular diseases.
Results: MR angiography showed no pathological arterial lesions such as aneurysms; however, there was an anomalous posterosuperior course of the V3 segment of the right VA.
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