This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Aerial disorders, Subject name: Surgery
Pressure on aery proximal to fistula leading to diminished swelling is known as: 
Select and explain. 
A. Murray sign, B. Frei sign, C. Darrier sign, D. Branham sign
D: Branham sign
Answer: D: Branham sign 
Explanation: Nicoladoni's or Branham's sign: Pressure on aery proximal to fistula causes the swelling to diminish in size, a thrill or bruit to cease, the pulse rate to fall and the pulse pressure returns to normal.