An arteriovenous malformations (AVMs) is a birth defect of the circulatory system that occurs in the brain, brainstem, or spinal cord. An arteriovenous malformation is composed of a complex formation of abnormal, tangled arteries and veins with abnormal communications between the blood vessels, leading to abnormalities in the flow of blood.
Arteriovenous malformations usually do not produce symptoms and may be found incidentally during an examination for other reasons. In other cases, they may produce serious and life-threatening symptoms, including mild to severe headache in one area of the head, seizures, weakness or paralysis in one part of the body, vision less, unsteadiness, confusion, or problems with speaking. Other associated symptoms can include gait disturbances, numbness, tingling, hallucinations, inability to understand others' speech, or difficulties carrying out tasks.
Other arteriovenous malformation symptoms and signs
- Difficulty Speaking
- Inability to Control Eye Movement
- Memory Deficits
- Muscle Weakness
- Numbness or Tingling
- Unsteady Gait
- Visual Disturbances
Main Article on Arteriovenous Malformation Symptoms and Signs
Pictures, Images, Illustrations & Quizzes
10 Facts About the Amazing Brain
Take this quiz to learn about your amazing brain! It's the most complex part of your body, and is responsible for many functions,...
Picture of Brain
The brain is one of the largest and most complex organs in the human body. See a picture of the Brain and learn more about the...
Picture of Brain Layers
That part of the central nervous system that is located within the cranium (skull). See a picture of Brain Layers and learn more...
Brain and Nervous System Resources
Subscribe to MedicineNet's General Health Newsletter