Ischemic limb gangrene could also come about in limbs with intact peripheral pulses because of thromboses inside the microcirculation. Venous limb gangrene is one doable bring about the place micro thrombosis transpires in the exact same limb as an acute massive-vein thrombosis, typically in a very hypercoagulable condition. COVID-19 difficulties: https://www.sgvascularctr.com/what-is-a-gangrene/