spinal arteriovenous malformation

A spinal arteriovenous malformation (AVM) is an abnormal tangle of blood vessels within the spinal cord, where arteries and veins are directly connected without normal capillaries. This abnormal connection can cause high-pressure blood flow and swelling, which may compress or damage the spinal cord tissue. AVMs can lead to symptoms like pain, weakness, numbness, or loss of function, depending on their size and location. Treatment options often include procedures to block or remove the abnormal vessels, helping to prevent further neurological damage and alleviate symptoms.