Related Experiment Video
Updated: Mar 5, 2026
09:53
Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
4.3K
Vertebrobasilar Dolichoectasia Causing An Optic Tract Syndrome.
Brandon B Holmes1, Wesley C Green, Nathan H Kung
1Medical Scientist Training Program (BBH), Washington University School of Medicine, St. Louis, Missouri Departments of Ophthalmology and Visual Sciences (WCG, NHK, GPVS) and Otolaryngology-Head & Neck Surgery (JAG), Washington University, St. Louis, Missouri.
Summary
Vertebrobasilar dolichoectasia (VBD) involves abnormal widening and twisting of brain arteries. This case highlights VBD causing nerve compression, leading to vision and nerve pain symptoms.
Area of Science:
- Neurology
- Vascular Neurology
- Neuroimaging
Background:
- Vertebrobasilar dolichoectasia (VBD) is a condition affecting the vertebrobasilar artery system, characterized by dilation, elongation, and tortuosity.
- VBD can lead to various neurological deficits due to mass effect or compression of adjacent neural structures.
Observation:
- A unique case of VBD was identified using advanced neuroimaging studies.
- The imaging revealed significant vascular compression impacting the right optic tract and cranial nerves.
Findings:
- The patient presented with incongruous left homonymous inferior quadrantanopia, a specific visual field defect.
- Concurrent glossopharyngeal neuralgia, a type of facial pain, was also observed.
Implications:
- This case underscores the diverse and complex neurological manifestations of VBD.
- Understanding these associations is crucial for accurate diagnosis and effective management of VBD patients.
- Highlights the importance of neuroimaging in VBD diagnosis and understanding its clinical impact.
More Related Videos
Related Concept Videos
01:25Glaucoma: Overview
1.6K
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
1.6K
01:10The Arch of Aorta
2.1K
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...
2.1K
01:28Angle Closure Glaucoma: Treatment
1.5K
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
1.5K
01:27Open Angle Glaucoma: Treatment
1.1K
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
1.1K
01:12Visual Agnosia
1.5K
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
1.5K