In addition, detection of expression of tumour‐ or tissue‐specific markers was included: for hepatocellular carcinoma, alpha‐faetoprotein; for thyroid carcinoma, thyroglobulin and sodium:iodide symporter (NIS) and for ovarian cancer, cancer antigen 125 (CA‐125). The gene discussed is SLC5A5; the disease is thyroid gland carcinoma.