In a second example, TFIZ1 and TFF1 were detected in adjacent normal mucosa, neither was detected in the primary tumour, but TFF1 was expressed by metastatic carcinoma cells located within a lymph node from the greater curve and by metastatic carcinoma cells that have invaded fat from the right paracardial area (Fig. 6E). This evidence concerns the gene GKN2 and metastatic carcinoma.