[Synchronous multiple gastric adenocarcinoma: a clinical case].

The Authors present a case of synchronous double gastric carcinoma in a 75-year-old man. Synchronous multiple gastric carcinoma (SMGC) constitutes 4% to 10% of all gastric cancers. It exhibits several clinicopathological characteristics that differ from those of solitary cancers: SMGC occurs in older people (men more than women); early carcinoma is observed more frequently in SMGC than in solitary cancers; the rate of intestinal type lesions is higher in multiple than in single gastric carcinoma. With regard to the pathogenesis of multiple gastric cancer, the theory proposing a multicentric or independent origin rather than the local or distant spread of one cancer (multifocality) has been favored.