Related Experiment Video
Updated: May 25, 2026
10:35
Simultaneous PET/MRI Imaging During Mouse Cerebral Hypoxia-ischemia
Published on: September 20, 2015
Bilateral persistent hypoglossal arteries: MRI findings
H Takahashi1, H Tanaka, N Fujita
1Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan. h-takahashi@radiol.med.osaka-u.ac.jp
The British Journal of Radiology
|February 7, 2012
Summary
Bilateral persistent hypoglossal arteries, rare fetal connections, were identified alongside absent vertebral arteries. This case highlights unusual cerebral vasculature and aids understanding of vascular development.
Area of Science:
- Neurology
- Vascular Anatomy
- Embryology
Background:
- Fetal anastomoses between carotid and vertebrobasilar systems are known.
- Bilateral occurrence of these fetal connections is exceptionally rare.
Observation:
- A case study identified the incidental absence of bilateral vertebral arteries during a neck ultrasound.
- Further investigation using MRI confirmed the absence of vertebral arteries.
Findings:
- The study confirmed the presence of bilateral persistent hypoglossal arteries.
- These arteries originated from the cervical internal carotid arteries bilaterally.
- They entered the cranium via the hypoglossal canal, connecting to the basilar artery.
Implications:
- This case contributes to the understanding of rare cerebral vascular anomalies.
- It underscores the importance of recognizing variations in fetal cerebrovascular patterns.
- Such findings can inform diagnostic approaches for related neurological conditions.
Related Concept Videos
01:10The Arch of Aorta
The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
Encircling the heart, the coronary arteries form a ring-like structure before...
01:26Arteries of the Head and Neck
The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
01:24Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
01:21Imaging Studies for Cardiovascular System IV: CMRI
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
01:19Imaging Studies VII: Vascular Imaging
DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
01:21Aneurysm II: Clinical Manifestations and Diagnostic Studies
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...