EGFR and non-small cell lung carcinoma: Studies on SCARNA7 expression levels in other cancers have shown inconsistent results.22, 23 Most of the previous reports have confirmed that SCARNA7 is upregulated in cancer tissues, although one report indicated that SCARNA7 was downregulated in chronic lymphocytic leukemia.24 In our study, the plasma SCARNA7 level was upregulated in EGFR‐mutant patients with NSCLC compared to those with wild‐type EGFR.