Figure 1From: Clinical and experimental studies regarding the expression and diagnostic value of carcinoembryonic antigen-related cell adhesion molecule 1 in non-small-cell lung cancer Immunohistochemical staining of CEACAM1 in primary NSCLC. (A) Representative CEACAM1 staining in tumour tissues. Arrows indicate the positive staining of neoplastic epithelium cells (brown colour, 200 × microscopic field). (B) No specific staining is visible in the section of normal cells adjacent to the tumour samples (200 × microscopic field).Back to article page