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
All are angiographic findings of Thromboangitis obliterans except 
Select and explain. 
A. Cork screw vessels, B. Rippled ertery, C. Constricted vasa vasorum, D. Spider Leg collaterals
C: Constricted vasa vasorum
Answer: C: Constricted vasa vasorum 
Explanation: In TAO(Buerger disease), there is dilatation of vasa vasorum that gives corkscrew appearance to vessels.