Concerning the immunohistochemical analysis techniques used, DVT samples were subjected to a reaction with anti-myeloperoxidase (anti-MPO) antibodies (1 case), fibrin, integrin α2bβ3, CD163, SMA, glycophorin A and CD206 (16 cases), CD34 (17 cases), anti-fibrinogen, CD15, CD45 and CD61 (140 cases), and CD68 (157 cases). This evidence concerns the gene GYPA and deep vein thrombosis.