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Case Study 201: Spinal AVM A spinal arteriovenous malformation (AVM) is a rare tangle of abnormal blood vessels on or within the spinal cord - disrupting normal blood flow and oxygen delivery. Facts: • Occurs in only about 3–4% of all AVMs. • Often affects patients between ages 20–40. • Symptoms may start subtly - weakness, numbness, or sudden paralysis. • Spinal angiography is key to diagnosis. • Treatment can include embolization, microsurgery, or radiosurgery to prevent bleeding or progressiv