CD274 and neoplasm: However, cytology imprints also yielded a good negative agreement on PD‐L1 high expression, that is, PD‐L1 tumour cells expression score ≥ 50% with a NPV of 85%, AUC = 79% [95% CI: 68–91%], indicating good capacity of these imprints in ruling out patients who might not qualify for a first‐line monotherapy with ICIs.