Fig. 3From: Report of two patients in whom comparisons of the somatic mutation profile were useful for the diagnosis of metastatic tumorsCOSMIC mutational signature of the gastric tumor. The signature showed signature 4 (version 2 in COSMIC [https://cancer.sanger.ac.uk/cosmic/signatures_v2]), which was associated with smoking and which has been found in lung cancer, head and neck cancer, and liver cancer. The order of mutation patterns conforms to COSMICBack to article page