Painful leukoplakia

When the deep veins of the lower limbs are acutely embolized, the lower extremity edema reaches the highest level within a few hours. The swelling is concave and high tension. The obstruction mainly occurs in the femoral vein system. When co-infection, stimulating arterial spasm continues, swelling of the whole limb, pale skin, and dilated venous veins under the skin can be seen. It is called Phlegmasia Alba Dolens.