The pathology of cholesterol embolism arising as a complication of intra‐aortic catheterization

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Abstract
Cholesterol embolism is an unusual but serious complication of intra-arterial procedures such as arteriography and angioplasty. The pathological findings in four cases confirm that this syndrome is due to disseminated micro-emboli composed mainly of cholesterol crystals and that these originate from atheromatous plaques in the aorta which may be traumatized by the catheter used in the intra-arterial procedure. However, angiography is not the sole precipitating cause of this syndrome but is an exacerbating event in a pre-existing process.

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