This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
The "Great Hilar Dance" sign of flouroscopy is seen in 
Select and explain. 
A. ASD, B. VSD, C. TGA, D. TAPVC
A: ASD
Answer: A: ASD 
Explanation: Vigorous arterial pulsations due to increased blood flow, seen flouroscopically in patients with ASD.