Surgery Most common cause of gangrene of foot of 30-years old farmer who is a chronic smoker A Raynaud’s disease B Myocardial infarction C Atherosclerosis D Thromboangitis obliterans 💡 Explanation Most common cause of gangrene of foot of 30-years old farmer who is a chronic smoker ✓ Correct Answer: D. Thromboangitis obliterans