We analysed SLAMF3 expression in primary tumours (T) and peritumoral (pT) tissues obtained from 10 HCC patients (mean ± SD age: 65.7±9.7 yrs) undergoing liver tumour resection (mean ± SD tumour size: 4.8±2 cm) in our Department of Surgery. Here, LY9 is linked to hepatocellular carcinoma.