Paraffin sections of lung tissues from 19 donors who underwent surgery for lung resection to treat lung cancer (Table 1) were stained with an IgG control antibody and antibodies specific for CEACAM1, 5 and 6, as well as with an antibody specific for CEACAM8, which is solely expressed in human granulocytes. Here, CEACAM1 is linked to lung carcinoma.