I66: Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
I66.3: Occlusion and stenosis of cerebellar arteries
The cerebellum and the brain stem are parts of the brain. The cerebellum is important for movement and balance. The cerebellum stores movement processes, for example, how one eats with cutlery or rides a bike. The brain stem is where breathing and heart rate are regulated. Various arteries supply blood to the cerebellum and the brain stem. One or more of these arteries in your head are constricted or closed.
There are various reasons why arteries narrow or get blocked like this. For example, fats and calcium may be deposited in the blood vessel wall. The blood vessel narrows as a result. Then sometimes not enough blood can flow through any longer. The arteries can also get blocked by a blood clot. The blood clot can form in the heart or somewhere else in the body. The blood clot can then be swept towards the brain along with the blood.
Various risk factors can favor the blocking of an artery. These include, for example, smoking, obesity, and high blood pressure.
When an artery gets blocked or narrows, it can cause various problems. However, there may be no symptoms at all.
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