CGA and neoplasm: Markers with >5-fold difference in G3 tumour relative to non-tumour tissue included CD56 (7.2-fold increase), CK6 (7.7-fold increase), CK7 (20.3-fold increase), CK13 (8.5-fold increase), NSE (9.8-fold increase), CgA (5.9-fold increase), laminin (6-fold increase) and Ki-67 (14-fold increase).