What They Are: Rare, slow-growing tumors that develop from the notochord, a structure in early embryonic development.
Symptoms: Headaches and neck pain. Vision problems or double vision. Difficulty swallowing or speaking. Hearing loss or ringing in the ears (tinnitus).
What They Are: Abnormal clusters of dilated blood vessels, also known as cavernous angiomas or cavernous malformations, that can occur in the brain or spinal cord.
Symptoms: Headaches. Seizures. Neurological deficits, such as muscle weakness or numbness. Difficulty with balance and coordination.
What They Are: A rare, progressive disorder caused by blocked arteries at the base of the brain, leading to the formation of tangled blood vessels that look like a "puff of smoke."
What They Are: Narrowing of the carotid arteries, the major blood vessels in the neck that supply blood to the brain, usually caused by a buildup of plaque (atherosclerosis).
Symptoms: Transient ischemic attacks (TIAs) or "mini-strokes". Stroke: Sudden, severe symptoms including numbness, confusion, trouble speaking, and loss of coordination.
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