Intraplaque hemorrhage results from rupture of which structure?

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Prepare for the Vascular Techniques Exam 3. Study with in-depth questions, hints, and explanations to fully understand vascular techniques. Bolster your knowledge and ensure success on your exam!

Multiple Choice

Intraplaque hemorrhage results from rupture of which structure?

Explanation:
Intraplaque hemorrhage comes from rupture of the microvasculature that feeds the plaque—the vasa vasorum. These small arteries run within the artery wall and can even be located inside the plaque itself. When they rupture, blood pours into the plaque, expanding it, increasing pressure, and destabilizing the fibrous cap, which accelerates plaque progression and risk of rupture. So the best answer is a tiny artery within the artery wall or plaque. It’s not from a vein in the adventitia, nor from the external carotid artery or an intimal flap associated with dissection.

Intraplaque hemorrhage comes from rupture of the microvasculature that feeds the plaque—the vasa vasorum. These small arteries run within the artery wall and can even be located inside the plaque itself. When they rupture, blood pours into the plaque, expanding it, increasing pressure, and destabilizing the fibrous cap, which accelerates plaque progression and risk of rupture. So the best answer is a tiny artery within the artery wall or plaque. It’s not from a vein in the adventitia, nor from the external carotid artery or an intimal flap associated with dissection.

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