By immunohistochemistry, the tumour cells were positive for pancytokeratin (focal) (Figure 1, panel C), CD21, CD23, CD35, D2‐40 (podoplanin), and clusterin (Figure 1, panels D–F), and negative for CD3, CD20, CD30, CD45, ALK‐1, EMA, PAX5, PDL1, and S100 stains. The gene discussed is PDPN; the disease is neoplasm.