Gastric carcinoma associated with other malignant tumours

Authors report on 25 patients treated for gastric cancers associated, synchronously or metachronously, with other malignant tumour. Hypotheses for the development of multiple malignant tumours are reviewed. They state that the prognosis of the second tumour is worse for its late detection and stress the importance of follow-up that also considers the possible development of a new tumour.