Spiral twisting of distal (V4) vertebral arteries in an asymptomatic female and its embryological basis
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.This study reports a rare spiral twisting variation of the distal vertebral arteries and vertebrobasilar junction. Understanding these intracranial vessel anomalies is crucial for diagnosing potential hemodynamic changes.
Area Of Science
- Neuroscience
- Embryology
- Vascular Anatomy
Background
- Intracranial vessels form from aortic arches and neural systems.
- Embryonic development variations can lead to asymptomatic or significant anatomical changes.
- Common variations include hypoplastic segments and persistent anastomotic channels.
Purpose Of The Study
- To report a rare anatomical variation of the vertebrobasilar system.
- To discuss embryological origins of this specific intracranial vessel anomaly.
- To highlight the role of non-invasive imaging in identifying such variants.
Main Methods
- Case report of a 36-year-old female patient.
- Utilized Magnetic Resonance Angiography (MRA) for imaging.
- Reviewed embryological development of the vertebrobasilar system.
Main Results
- Identified a rare spiral twisting of the distal vertebral artery (V4 segments) and vertebrobasilar junction.
- This anatomical variation was visualized using MRA.
- The finding contributes to the spectrum of known intracranial vessel variations.
Conclusions
- Spiral twisting of the distal vertebral and vertebrobasilar junction is a rare anomaly.
- Embryological factors likely influence the development of such variations.
- MRA is effective in detecting and characterizing these intracranial vascular anomalies.
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
Related Concept Videos
The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
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...
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...
Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
The thoracic section of the aorta begins at the T5 vertebra and extends to the T12 level at the diaphragm, initially progressing through the mediastinum to the left of the spinal column. Throughout its course in the thoracic segment, the thoracic aorta emits various offshoots known collectively as visceral and parietal branches. The branches that predominantly supply blood to visceral organs are termed visceral branches and include bronchial, pericardial, esophageal, and mediastinal arteries,...
Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...