Fig. 1.

Representative examples of P-selectin glycoprotein ligand-1 (PSGL-1) staining in immune cells infiltrating clear cell renal cell carcinoma. PSGL-1-negative TC and a few (5%) -positive tumour-associated immune cells (TAIC) in thrombus (A), negative TC and 90% positive TAIC in tumour (B), strongly positive TC and TAIC in thrombus (C), moderately positive TC and negative TAIC in tumour (D) PSGL-1 – P-selectin glycoprotein ligand-1, TAIC – tumour-associated immune cells, TC – tumour cells