Cancer in Pets Expert Forum
Pancreatic cancer-mets
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Pancreatic cancer-mets

My dog was just euthanized for what was thought to be a brain tumor as he was exhibiting central blindness. He had had digestive problems for 15 months which none of 7 vets could find a cause for. I could not afford a necropsy but my vet did ask if she could open up the dog to have a look. He had a tumor on his pancreas the size of two plums. He had minor seizures his whole life and with the central blindness I thought the brain tumor dx. accurate but now I want to know if the pancreatic tumor spread to the brain or vice versa. He had two normal abdominal ultrasounds and never had elevated amylase or lipase. What is the most likely mets? Is it possible that he just coincidentally had two separate cancers and there was no mets?
Type of Animal
:  
Dog
Age of Animal
:  
8 1/2
Sex of Animal
:  
Male
Breed of Animal
:  
Rottweiler Mix
Last date your pet was examined by a vet?
:  
June 18, 2009
City
:  
vineyard haven
State/Province
:  
mass
Blood Test Results
:  
Elevated Triglycerides---all else normal.
X-Ray Results
:  
Enlarged liver and sleen.
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931217_tn?1283484935
Dear Miss Lilac,

First, let me express my condolences on your loss. It is never easy to lose a beloved pet.

Pancreatic cancer in dogs does metastasize (spread), but the brain would be an uncommon site to do so. More common would be liver, abdominal lymph nodes and other internal abdominal surfaces.

I can only surmise, but in light of the central blindness I think he had a second diagnosis and that the masses found on the pancreas were incidental to the blindness, even if they were truly cancerous (i.e. malignant). Alternatively the pancreatic masses could have possibly been pancreatic abscesses.

Brain tumors do not typically metastasize outside the skull, therefore while I have no doubt a central nervous system disease process existed and may well have been a form of central nervous system cancer, I still think he had two separate problems concurrently. This is not as uncommon as we once thought. Sometimes multiple forms of cancer may exist in the same animal, unfortunately. Another theoretical linkage between brain and pancreas could be infection. Perhaps a brain abscess occurred secondary to a pancreatic abscess. I might have expected more neurologic dysfunction than just blindness in such a case however.

Only pathologic analysis of the pancreatic masses and the brain could establish any linkage. Today MRI is sometimes used to evaluate the brain structure and any lesions in the skull. Unfortunately it is not available everywhere, requires general anesthesia and can be quite costly.

With all of our advancements and our current "high level" of medical understanding we unfortunately cannot fully comprehend or arrest every medical problem. We must unfortunately be satisfied with incremental improvements at times. I do wish your dog could have been helped and could have lived a longer life.

Sincerely,

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Aleda M Cheng, D.V.M., C.V.ABlank
American Animal Hospital
Randolph, NJ
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