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: Surgery
Nicoladini's Branham sign is seen in 
Select and explain. 
A. Aortic dissection, B. Buerger's disease, C. Aneurysm, D. AV - Fistula
D: AV - Fistula
Answer: D: AV - Fistula 
Explanation: Nicoladini's Branham sign is seen in arteriovenous fistula, wherein compression proximal to AV - fistula results in bradycardia.