ARDMS Abdomen Practice Exam 2025 – Complete Test Prep

The floating aorta sign is associated with enlarged lymph nodes localized posterior to the aorta, which can lead to displacement of the great vessels. This sign is particularly significant in imaging as it indicates the presence of lymphadenopathy that can cause a distinctive configuration of the aorta. When these enlarged nodes press against the aorta, they can make the aorta appear to be "floating" above or away from the spine on imaging studies, as the vessels are being pushed laterally or upward.

Understanding this sign is crucial as it can be indicative of serious underlying conditions, such as malignancy or significant infections, which can have major implications for patient management and treatment. Recognizing the floating aorta sign helps clinicians make informed decisions based on the presence of potentially life-threatening conditions.