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Melanoma Cancer

This is a discussion on Melanoma Cancer within the Horse Health forums, part of the Keeping and Caring for Horses category

     
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        01-14-2010, 02:45 AM
      #11
    Trained
    The only way to tell for sure a grey horse has skin cancer is to remove the hide (not real great for the horse). Grey horses are slaughtered at a seperate plant than colored horses because of the incidence of cancer so I would say the incidence must be pretty high. Very few horses ever show any signs of it and fewer still ever have to get treatment or put down because of it. It's not something that would factor in to my decision on rather to buy a horse or not.
         
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        01-14-2010, 07:26 AM
      #12
    Weanling
    Quote:
    Originally Posted by kevinshorses    
    The only way to tell for sure a grey horse has skin cancer is to remove the hide (not real great for the horse). Grey horses are slaughtered at a seperate plant than colored horses because of the incidence of cancer so I would say the incidence must be pretty high. Very few horses ever show any signs of it and fewer still ever have to get treatment or put down because of it. It's not something that would factor in to my decision on rather to buy a horse or not.
    Good, because I really love grey horses. :P
         
        01-14-2010, 10:35 AM
      #13
    Yearling
    Quote:
    Originally Posted by kevinshorses    
    The only way to tell for sure a grey horse has skin cancer is to remove the hide

    Actually kevin, you can biopsy the melanoma and get a diagnosis quite easily, just like humans. No hiding necessary. And it is incorrect to say that few ever show signs, a very high percentage have melanomas which appear as lumps around the tail base. I am basing this on scientific studies, not personal observation or opinion (was just forced to read about this for a class). I would agree though, that I wouldn't let it factor into my decision to buy a gray or not.
         
        01-14-2010, 10:41 AM
      #14
    Foal
    Quote:
    Originally Posted by Crimsonhorse01    
    Is it more likely with certain breeds? All the grey arabs I've known have never had Melanoma, but quite a few QH have.
    My first horse was a flea-bitten grey, QH. She ended up with melanoma, both at tail and in mouth.

    * "Grey cancer" crosses breeds (from my vet and research)
    * Not all greys get cancer
    * Not all greys who get cancer necessarily die from it

    5 years after diagnosis, the cancer metastasized and BB died at 25. She went very fast; so quickly that she died before the vet came to put her down.

    There are tales of how/why greys get cancer (I read one that stated that all the dark in the young grey begins to collect in lumps on the horse, and that's why they get lighter and get cancer)--so read up as much as you can.
         
        01-14-2010, 10:42 AM
      #15
    Weanling
    Quote:
    Originally Posted by Crimsonhorse01    
    Is it more likely with certain breeds? All the grey arabs I've known have never had Melanoma, but quite a few QH have.
    Just a side comment on the breed thing...I have a grey arab mare, purebred...almost white...she has two small lumps under her tail...havent had them tested but im pretty sure they are small melanomas...i just sorta watch them...they arent a problem at the current...
         
        01-14-2010, 03:10 PM
      #16
    Yearling
    We have three or four gray arabians in our herd with melanoma. The most commonly grow slowly, without metastasis (spreading) but some can grow for years and suddenly become malignant. Rarely they are malignant and metastatic from the onset. 80% of grays over 15 have melanocytic growths. Some reading for those who are interested:


    http://ntserver1.wsulibs.wsu.edu:2057/ehost/pdf?vid=2&hid=11&sid=0238148c-2fc7-4556-91a1-400256357f73%40sessionmgr14

    http://ntserver1.wsulibs.wsu.edu:205...40sessionmgr12

    The Horse | Gray Horse Disease--Melanoma
    The Horse | Melanomas: Gray Horses vs. Solid-Colored Horses
         

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