Similarly, KRAS mutations are rare in intestinal-type and diffuse/poorly cohesive gastric carcinomas (<10% of cases),14 appendiceal GCAs (0%-6%), and SRC adenocarcinomas (0%).35,42-44 Interestingly, Jun et al45 found no KRAS mutations in four SRC SBAs. Here, KRAS is linked to gastric carcinoma.