Cholesterol Embolization Syndrome From Penetrating Aortic Ulcer

Curēus
Jennifer NickolJared Mullins

Abstract

Penetrating aortic ulcer (PAU) is an important, albeit, rarer cause of embolization to internal organs and distal extremities. Embolization occurs as a result of the disruption of cholesterol deposition in the wall of the aorta by a PAU. The classic presentation of cholesterol embolization syndrome (CES) includes pain, pallor, poikilothermia, paresthesia, and paralysis with intact pulses. The patient will classically have livedo reticularis or "blue toes." We present a case of a patient who presented to the emergency department with the complaint of a painful, blue toe. The patient had intact distal pulses on exam with the distal 2/3 of the first toe having a markedly blue/black color with livedo reticularis spreading proximally on the other 1/3 of the toe. CT angiogram with runoff to the lower extremities revealed a 3.6-cm infrarenal abdominal aortic aneurysm with a 5-mm penetrating aortic ulcer with a three-vessel runoff to the distal lower extremities. The diagnosis of CES secondary to a PAU was made. While thrombotic embolization from PAU causing acute limb ischemia is less common, it is well described. In contrast, cholesterol embolization from PAU remains a rare phenomenon without adequate treatment options.

References

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Methods Mentioned

BETA
amputation
dissection

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