CEACAM6 and neoplasm: After reconfirmed that CEACAM6 can be a theranostic target for pulmonary malignant nodules and the prominent and prolonged tumor uptake of 89Zr‐Df‐tinurilimab in the A549 tumor model, the radiotherapeutic nuclide 131I was used for labelling tinurilimab, followed by exploration of its therapeutic efficacy in LUAD.