EGFR and small cell lung carcinoma: Statistical analyses were conducted using the Fisher exact test and performed with R v4.2.1 environment.<h4>Results</h4>Among 12 transformed SCLC cases, the majority were female (10/12, 83.3%), non-smokers (10/12, 83.3%) and harbored EGFR 19del mutations (11/12, 91.7%).