In adenocarcinoma (compared to squamous cell carcinoma), the largest positive difference in percentage points was observed in the resting CD4 T‐cell (+2.4 percentage point), resting mast cell (+1.5 percentage point), memory B‐cell (+1.1 percentage point) and active NK cell (+0.6 percentage point) fractions. Here, CD4 is linked to squamous cell carcinoma.