Arterial plaques can be classified into two main types: stable and unstable plaques. Stable plaques are characterized by a thick fibrous cap and a smaller lipid core, which makes them less likely to rupture. Unstable plaques, on the other hand, have a thin fibrous cap and a large lipid core, making them more prone to rupture. The rupture of an unstable plaque can lead to the formation of a thrombus (blood clot), which can obstruct blood flow and cause acute cardiovascular events such as heart attacks or strokes.
