Registered Cardiovascular Invasive Specialist (RCIS) Practice Test

Which of the following describes the appearance of a pseudoaneurysm?

1. Hematoma

2. Radical infusion

3. SAC

4. Ulceration

The correct answer is: SAC

A pseudoaneurysm presents as a sac-like structure that is formed when blood leaks out of a vessel but remains confined by the surrounding tissue, creating a false (or "pseudo") aneurysm. The critical feature of a pseudoaneurysm is this sac-like appearance, which can often be visualized through imaging techniques such as ultrasound or CT scans. This distinguishing characteristic helps to differentiate it from other vascular lesions. The other options are not suitable descriptors for pseudoaneurysms. A hematoma refers to a collection of blood outside of blood vessels, typically resulting from a rupture without a defined vessel wall. Radical infusion does not specifically relate to the appearance of vascular abnormalities but instead describes an infusion technique. Ulceration refers to the breakdown of tissue, often associated with skin or mucous membranes and is not relevant to the structural appearance of a pseudoaneurysm. Understanding these differences is key to accurately diagnosing and managing vascular conditions.