Blocking of a blood vessel in the skull by an embolus which can be a blood clot (thrombus) or other undissolved material in the blood stream. Most emboli are of cardiac origin and are associated with heart diseases. Other non-cardiac sources of emboli are usually associated with vascular diseases. The disease is intracranial embolism (Monarch Disease Ontology id MONDO_0006809). Also known as: cerebral embolism, cerebral embolism with cerebral infarction.