what is white blood cell extravasation
Leukocyte extravasation, less commonly called diapedesis, is the movement of leukocytes out of the circulatory system, towards the site of tissue damage or infection.This process forms part of the innate immune response, involving the recruitment of non-specific leukocytes.eukocyte adhesion deficiency (LAD) is a genetic disease associated with a defect in the leukocyte extravasation process, caused by a defective integrin Î²2 chain (found in LFA-1 and Mac-1).