Inhalation by KM mice of AdV-Cre sporadically co-induces expression of both oncogenic KRasG12D and tamoxifen-switchable MycERT2 in bronchioalveolar epithelium; in the resulting adenomas, oncogenic KRasG12D activity is expressed constitutively while Myc activity may be reversibly superimposed at will. Here, MYC is linked to adenoma.