This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vascular surgery, Subject name: Surgery
Psuedoaneurysm in I.V.drug abusers is commonly found in 
Select and explain. 
A. Radial aery, B. Brachial aery, C. Femoral aery, D. External iliac aery
C: Femoral aery
Answer: C: Femoral aery 
Explanation: Pseudoaneurys Most common cause : Trauma (penetrating trauma or iotrogenic by catheterization) MC aery involved : Radial aery Treatment Ligation is the optimal treatment for infected pseudoaneurysm because it is easy, safe and cost effective (in IV drug abuser there is high chance of infection) RReconstruction is not recommended because of extension of infection at location of pseudoaneurysm and at aificial graft site Ref: Rutherford vascular surgery 6th edition pvolume II Pgno : 248-249