FLT4 and neoplasm: The receptor of VEGF‐C includes VEGF receptor‐2 (VEGFR‐2), VEGFR‐3, and neuropilin (NRP–2).6 VEGF‐C makes a significant contribution to tumour‐related lymphangiogenesis and lymphatic metastasis in a number of tumour types by mainly acting on VEGFR‐3.