This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
Leriche syndrome is caused in 
Select and explain. 
A. Aooiliac obstruction, B. Iliac obstruction, C. Femoropopliteal obstruction, D. Distal obstruction
A: Aooiliac obstruction
Answer: A: Aooiliac obstruction 
Explanation: Leriche&;s syndrome involves the blockage of the abdominal aoa as it transitions into the common iliac aeries.Aooiliac obstruction is characterized byClaudication in buttocks, thighs and calvesFemoral and distal pulses absent in both limbsBruit over aooiliac regionImpotence (Leriche)Ref: Bailey and love pg: 944