These include HER2 (amplified in breast and gastric cancer and less commonly in lung cancer) BCR:: ABL1 (a chimeric gene present in chronic myeloid leukemia and some B-cell acute lymphocytic leukemias) CMYC (Burkitt lymphoma) NMYC (small cell lung cancer, neuroblastoma) EGFR (adenocarcinoma of the lung) EML4ALK (a chimeric gene present in adenocarcinoma of the lung) KRAS (pancreatic cancer, lung cancer) Specific oncogenes may have important implications for diagnosis, therapy, and prognosis (see individual discussions under the specific cancer type).