What is the difference between cerebral embolism and cerebral infarction?

Cerebral embolism refers to all kinds of emboli in the blood, such as mural thrombus in the heart, atherosclerotic plaque, fat, tumor cells, fibrocartilage or air, etc., which enter the cerebral artery with blood flow to block blood vessels. When the collateral circulation cannot compensate, it causes ischemic necrosis of brain tissue in the arterial blood supply area, showing focal nerve function defect. Cardiogenic cerebral embolism is the most common type of embolism. Cerebral infarction refers to ischemic necrosis or softening of localized brain tissue caused by cerebral blood circulation disorder, ischemia and hypoxia. Cerebral embolism is a type of cerebral infarction.