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In Vivo. 1994 Nov-Dec;8(5):893-914.

Interspecies comparative pathology of colorectal neoplasms: relevance for treatment.

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  • 1Department of General and Experimental Pathology, University of Vienna Medical School, Austria.


Comparative pathology may serve as a practical tool for therapy by comparison of normal and abnormal structures of the digestive tract in animals and men. A better understanding of colon cancer as the most common solid neoplasm after lung cancer in the industrialized world is sought. In the so-called developed nations and in animals colon cancer is less frequent. The pathogenesis of colon cancer involves environmental and genetic factors. Several types of colorectal cancer can be discerned and the species distribution ranges from invertebrates to man. Colorectal neoplastic progression is species-specific. An intraspecies-specific comparison of large bowel cancer is also valuable. Alteration of signal transduction pathways and somatic mutations of oncogenes are described, as well as the occurrence, research and current treatment. Metastasis of neoplasms of the colon and of the rectum can be studied by intraspecies-specific comparison. Sections of this review deal with vitamin D and cancer and close with present therapies for colorectal cancer.

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