The document discusses vulnerable plaques, which are the most common type of plaque that can rupture and cause heart attacks or strokes. A typical vulnerable plaque is described as being prone to rupture. It contains a thin fibrous cap with a large lipid core.

1. Naghavi et al. Circulation. 2003;108:1664
The most common type

2. From Davies and Falk
A typical rupture-prone vulnerable plaque