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==Introduction==
==Description==
Intestinal adenocarcinomas are a reasonably common malignant neoplasm of dogs and cats arising from the epithelial lining of the gastrointesinal tract. As yet, no causative organism or chemical agent has been identified for intestinal adenocarcinomas, but experiments have suggested that nitrosamines may have a role. Intestinal adenocarcinomas can be nodular or annular in appearance. By the time of diagnosis, they have often metastasised via the lymphatic and vascular routes, most commonly to the mesenteric lymph nodes. Other sites of metastasis include the liver, kidneys, peritoneal cavity, omentum and lungs. Intestinal adenocarcinomas display aggressive local growth and invasion, and tumours frequently recur after resection.
Intestinal adenocarcinomas are a reasonably common malignant neoplasm of dogs and cats arising from the epithelial lining of the gastrointesinal tract. As yet, no causative organism or chemical agent has been identified for intestinal adenocarcinomas, but experiments have suggested that nitrosamines may have a role. Intestinal adenocarcinomas can be nodular or annular in appearance. By the time of diagnosis, they have often metastasised via the lymphatic and vascular routes, most commonly to the mesenteric lymph nodes. Other sites of metastasis include the liver, kidneys, peritoneal cavity, omentum and lungs. Intestinal adenocarcinomas display aggressive local growth and invasion, and tumours frequently recur after resection.
* [http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/23307.htm| The Merck Veterinary Manual - Gastrointestinal Neoplasia]
* [http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/23307.htm| The Merck Veterinary Manual - Gastrointestinal Neoplasia]
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|literature search = [http://www.cabdirect.org/search.html?q=title%3A%28intestine%29+AND+title%3A%28Adenocarcinoma%29 Intestinal Adenocarcinoma publications]
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[http://www.cabdirect.org/search.html?q=title%3A%28intestine%29+AND+title%3A%28Adenocarcinoma%29 Intestinal Adenocarcinoma publications]
==References==
==References==
* White, R. A. S. (2003) Tumours of the intestines, in '''BSAVA Manual of Canine and Feline Oncology, (Second Edition)''' ''British Small Animal Veterinary Association''.
* White, R. A. S. (2003) Tumours of the intestines, in '''BSAVA Manual of Canine and Feline Oncology, (Second Edition)''' ''British Small Animal Veterinary Association''.
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[[Category:Intestines_-_Proliferative_Pathology]]
[[Category:Intestines_-_Proliferative_Pathology]]