Ischemic limb gangrene can also manifest in limbs with intact peripheral pulses on account of thromboses in the microcirculation. Venous limb gangrene is just one attainable cause in which micro thrombosis takes place in the exact same limb being an acute significant-vein thrombosis, typically inside of a hypercoagulable point out. https://www.sgvascularctr.com/what-is-a-gangrene/