The tumour solidity ratio (consolidation tumor ratio,CTR) correlated significantly with PD-L1 expression (P = 0.003), while morphological traits like pleural indentation (P = 0.007), spiculation (P < 0.01), and ground-glass opacity (P < 0.01) were associated with PD-L1 positivity.10 The gene discussed is CD274; the disease is neoplasm.