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Intestinal Adenocarcinoma (view source)

Revision as of 16:31, 10 August 2010

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Dogs are more commonly afflicted with intestinal adenocarcinoma than cats. Intestinal adenocarcinomas have been seen in animals between the ages of 3 and 13 years, but most cases are seen in middle aged to older animals. The mean age of occurence is 6 to 9 years in the dog, and 10 to 12 years in the cat. There apppears to be a predisposition for males, and this is more pronounced in dogs than in cats. There are no breed predispositions.
 
Dogs are more commonly afflicted with intestinal adenocarcinoma than cats. Intestinal adenocarcinomas have been seen in animals between the ages of 3 and 13 years, but most cases are seen in middle aged to older animals. The mean age of occurence is 6 to 9 years in the dog, and 10 to 12 years in the cat. There apppears to be a predisposition for males, and this is more pronounced in dogs than in cats. There are no breed predispositions.
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==Description==
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* No organism or chemical agent has been identified that will induce spontaneous intestinal [[Adenocarcinoma|adenocarcinoma]].
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* The gross appearance of colorectal [[Adenocarcinoma|adenocarcinomas]] vary from pedunculated, particularly in the distal rectum, cobblestone, in particularly the middle rectum, and annular, also usually in the middle recutum, and may also have associations with tumour behaviour and prognosis.
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* In cats, [[Adenocarcinoma|adenocarcinomas]] have been reported to have been found in the ileum and ileocaecal region. Another study reports the jejunum to be the most common site.
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* Metastasis occurs via lymphatic and vascular routes. For small intestinal [[Adenocarcinoma|adenocarcinomas]] the most frequent sites of metastasis are the mesenteric lymph nodes. Other sites include the liver, kidneys, peritoneal cavity, omentum and lungs. Metastatic spread is commonly encountered at time of diagnosis.
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* Large intestinal [[Adenocarcinoma|adenocarcinomas]] often metastasise to the deep inguinal lymph nodes. The liver is less frequently affected. These tumours also undergo aggressive local growth and local recurrence after resection frequently occurs.
      
==Diagnosis==
 
==Diagnosis==
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