[Multiple carcinomas of the large intestine].

Authors stress that multiple carcinomas of the large bowel are not exceptional at all and report 5 cases of metachronous cancers and 1 case of synchronous cancers. They are 4,4% of all the colo-rectal neoplasms operated by the "Istituto di Semeiotica Chirurgica dell'Università di Trieste". The Authors discuss the most important pathogenetic, pathological and diagnostic problems and emphasize the usefulness of a very careful intra-operative evaluation of the entire colon and of a post-operative follow-up for the early discovery and treatment of a second cancer in another tract of the large bowel.