M2-polarized tumour-associated macrophages in stroma correlate with poor prognosis and Epstein–Barr viral infection in nasopharyngeal carcinoma

Increased infiltration of CD163⁺ macrophages in the tumour stroma correlates with worse outcomes and with Epstein-Barr virus (EBV) infection status of tumour cells in nasopharyngeal carcinoma (NPC).