LEFT AND RIGTH Colon cancer can be considered a really interesting model to better understand what happen in a single apparatus and the related cancer phenomena Environmental risk factors, hereditary syndromes and ¿sporadic¿ form added to 2 final different kind of pathology ( LEFT and right CANCER ) contribute to a real complex epidemiological situation. Aim of this work is to set 2 different kinds of ¿TOXIC-PATHOLOGIC ¿ factors that make possible whit their GRADIENT the development of this 2 different kind of cancer in the same part of an apparatus.

M. Luisetto, Dottore in Filosofia, Vicepresidente Onorario IMA Accademia Internazionale Mariinskaya, ramo scienze naturali, Farmacologo applicato.Latyshev O. Yu.,membro corrispondente di Intern. Professore dell'Accademia delle scienze psicologiche (IAPS) alla Cypress University e dell'Accademia russa di storia naturale, presidente dell'Accademia IMA.