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Melanoma?

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  • Horse loses pigment around eyes
  • When to have gray horse melanoma's removed

 
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    08-17-2011, 11:02 PM
  #11
Banned
Gray horses are prone to vitiligo, which is the gradual and progressive dipigmentation of the skin. People get it, too.



Homozygous grays are more likely to end up with a significant degree of vitiligo, giving the skin a mottled appearance, but heterozygous grays certainly get it, too. There appears to be no link between vitiligo and melanoma.

As for the color of a gray's skin, it will come from the base color of the horse--so an Appaloosa gray will likely have pink or mottled skin, a black gray will have dark skin, a cremello gray will have pink skin, and so on. In the general scheme of things, the majority of grays will have dark skin simply because the majority of horses have dark skin.

The cancer that grays get is melanoma, most typically, whereas white/spotted/pink-skinned horses are more prone to squamous cell carcinoma.

I don't know what those are on your horse, Phantom. They do remind me of smrobs' horses melanoma, but at the same time, they also resemble sarcoids.
     
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    08-17-2011, 11:13 PM
  #12
Started
Quote:
Originally Posted by Cherie    
Many grays with pink skin were actually born with black skin and then lost the pigment. This is very common around a horse's mouth and eyes. As horses get older and turn white, it also gets quite difficult to tell where the horse had a white marking with pink skin under it and where the horse has lost pigment.

Phantom looks like an appy that faded out....well his skin does his hair is all white. You can really tell when he's wet...it's kind of funny. So he has the mottling around his mouth and eyes but also on the rest of his body.
This is a very old picture but it's the best I have right now. You can see the spots and what not haha. He is wet in this picture and obviously the dark parts are part of his "pattern" and the spots that just look white are where the pink skin it.
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File Type: jpg Cassie new3 076.jpg (59.6 KB, 129 views)
     
    08-17-2011, 11:17 PM
  #13
Started
Quote:
Originally Posted by bubba13    
Gray horses are prone to vitiligo, which is the gradual and progressive dipigmentation of the skin. People get it, too.



Homozygous grays are more likely to end up with a significant degree of vitiligo, giving the skin a mottled appearance, but heterozygous grays certainly get it, too. There appears to be no link between vitiligo and melanoma.

As for the color of a gray's skin, it will come from the base color of the horse--so an Appaloosa gray will likely have pink or mottled skin, a black gray will have dark skin, a cremello gray will have pink skin, and so on. In the general scheme of things, the majority of grays will have dark skin simply because the majority of horses have dark skin.

The cancer that grays get is melanoma, most typically, whereas white/spotted/pink-skinned horses are more prone to squamous cell carcinoma.

I don't know what those are on your horse, Phantom. They do remind me of smrobs' horses melanoma, but at the same time, they also resemble sarcoids.

Oooo thanks for the info! Very informative. I think Phantom's an appy grey (well at least I know at least part of his breed now haha) because of all the mottling, spots, and what not.

So would you suggest having a vet out to check it? I saw a thred about treating sarcoids with toothpaste....do you think I should give that a go and see what happens?
     
    08-17-2011, 11:25 PM
  #14
Banned
Without knowing what it is, I certainly wouldn't attempt to treat it. Whether or not you have the vet look depends on how worried you are. Me, I probably would, but at the same time, if money's a concern, you can just keep a very close eye on it and call the vet if it gets worse.
     
    08-17-2011, 11:36 PM
  #15
Started
^^^
I think I'll shoot an email to my vet and see if he thinks it's worth coming out to see. It's not getting any bigger, not oozing, and it doesn't seem to be bothering him. It honestly just feels like a scab.....the only difference between this and a scab is this is lasting longer than any scab I've ever experienced. It looks the same as the day I first noticed it.
     
    08-18-2011, 07:44 AM
  #16
Super Moderator
I would leave it alone. If it is a dormant sarcoid, anything you do could 'wake it up' and it could get really ugly.

Sarcoids that wake up and take off can turn into fist sized or bigger bloody tumors that keep coming back, even after surgical removal. They can be soooo bad, that I leave any dormant, flat and dry one completely alone. I know people that have spent thousands of dollars on one that woke up and never got a good solution.

I have one now that had several dormant sarcoids for over 10 years. One woke up and started growing 2 years ago. It is at the junction of his ear and his forehead -- mostly on his lower ear. The Vet has surgically removed it twice and it came back with a vengeance. He has a bloody 2-3 inch tumor that has not responded to anything we or the Vet has done. Xterra and Chemo therapy drugs have not kept it from coming back. We are now trying Underwoods and proud flesh medicine on it and it is at least drier and not dripping blood all down his face. Since it is right above his eye, we have to be very careful with it. One of the Vets we sometimes use recently put a horse down because a sarcoid kept coming back.

So, I highly suggest leaving it alone in case it is a sarcoid. A dry, flat, dormant one should not be stirred up.
     

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