Topic: Peripheral arterial diseases, varicose veins, coarctation of the aorta.
Question: 50 year old male who is a chronic smoker presents with dry gangrene of the right great toe and rest pain in the right lower limb. On examination, it was found that his right dorsalis pedis artery pulse is absent. Define chronic limb ischemia and discuss the causes of lower limb gangrene. Discuss the management of the above mentioned condition.