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: Microbiology
Buerger's disease is not associated with 
Select and explain. 
A. Affects male under the age of 30 year, B. Thrombophlebitis of deep or superficial veins, C. Involvement of large sized aeries primarily, D. Characteristic 'corrugation' of femoral aeries on angiography
C: Involvement of large sized aeries primarily
Answer: C: Involvement of large sized aeries primarily 
Explanation: Buerger's disease (thromboangitis obliterans)Occlusive disease of small and medium-sized aeriesThrombophlebitis of superficial or deep veinsRaynaud syndromeAffects males (<30yrs)Angiography sometimes showed a characteristic 'corrugation' of the femoral aeries as well as the distal aerial occlusions and helps to distinguish the condition from aggressive atheroma of early onset.