SMARCA4-deficient non-small cell lung cancer: Infiltrative poorly differentiated adenocarcinoma of the right lung with EGFR exon 21 L858R mutation, classified as stage IVB (cT3N2M1c) involving the right parietal lobe, right clavicle, and right sacroiliac joint. This evidence concerns the gene EGFR and non-small cell lung carcinoma.