CEACAM8 and adrenal gland pheochromocytoma: Furthermore, IF staining was carried out on GC biopsy specimens (n = 64, 30 PCC cases and 34 NPCC cases) and quantified the level of infiltration of IFIT1 + TANs using integrated fluorescence intensity (IFIT1 and the typical neutrophil markers CD66b and CD55).