This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Radiology
which sign is seen on USG when the femoral vein meets the GSV and femoral aery at saphena femoral junction 
Select and explain. 
A. Mickey mouse sign, B. String sign, C. Tillaux sign, D. stemers sign
A: Mickey mouse sign
Answer: A: Mickey mouse sign 
Explanation: ref : david sutton 9th ed