EGFR and lung carcinoma: Shigeto et al107 designed a PNA‐DNA probe, in which PNA and DNA conjugated with fluorescein isothiocyanate for detection and Dabcyl as quencher probe respectively; for imaging analysis of EGFR mutation especially the following three EGFR mutations exon19del E746‐A750, T790M, and L858R in lung cancer cells.