A total of 22 lung cancer-related genes of the two patients were tested by the Shanghai Ackerman Diagnostic Pathology Center and one case with an EGFR somatic mutation: exon19:c.2236_2256delinsATC (p.E746_S752delinsI) was detected in one case (the female patient), and no somatic mutation was detected in the other (the male patient). Here, EGFR is linked to lung cancer.