Itchy spot -- like mud or callus but not

My TB has a spot on his belly on the left side (actually two places very close about the size of half dollars, but not really round). It feels like stuck on mud or kind of a callus, but it doesn't come off or bleed or anything. It's kind of the color of mud. When I rub hard on it with a stiff brush, my horse LOVES it. This is not a horse who's ever liked being scratched on the stomach. Any ideas to what it is? Not bloody or anything like sweet itch or the ochin-yada-yada stuff.

Doesn't seem to bother him. It's been there for at least four or five days.

I've put Corona on it a few times because it seems as if it'd be soothing.

Ringworm? Not always in a circle shape.

Kinda sounds like psoriasis, actually... Do horses get that?

Is it just a spot of missing hair in the shape of a circle? Or is it similar to a rough/warty/callousy texture?

if its just missing hair and itchy, I'd say ringworm

If its kind of rough or scaly, I'd say sarcoid.

This is what my mare's sarcoid looks like, its located on her flank.

http://i238.photobucket.com/albums/f...dySarcoid2.jpg

Well, actually, if its the size of a half dollar in only a few days, I wouldn't think sarcoid. ?

It seems raised and it's callousy -- it's like a clump of dried mud, but it's not mud. I don't think it's ringworm -- not like any ringworm I've seen. I'll shine a black light on it if I can find one.

OK, I'll take pics tonight.

I would say sarcoid also, actually that is what the vet says. My horse has one on his right side under where the girth goes.
I'm not sure it this is ok, or if I should start a new topic, but what has anyone else used to get rid of them?

Do sarcoids itch -- or feel good when they are scratched?

Never mind. A vet works in my office (forgot she was here today), and she says they can itch. I'll still try to take pics and figure out if that's really what it is.

OMG, remind me never to Google images of sarcoids on horses, especially right after lunch. Yuck!

Bacchus, I sent you a pm.

My mare has one on her ear, which totally looks like ringworm. I noticed it when I started leasing her a few years ago, thought it was ringworm, but it was elevated, so I asked & vet said it was a sarcoid. It hasn't grown at all, so I try to ignore it. It is about the size of a small dime & makes it look like her ear is dirty, but only the person on her back (ie me) can see it.

That's what my horse's sweet itch spots look/feel like. The skin actually thickens from the irritation. I had a piece biopsied just to make sure...

Sorry, here's an update:

I don't think mine was a sarcoid -- or I assume not;) Here's what happened: I put Corona on it for a day or two, and it got all goopy with brown sticky stuff. Almost like greasy heel or something, but under his belly. He had marks on his back pasterns that were brownish, so at first I thought maybe the "greasy heel" on his belly was from his pasterns, but now I think that the marks on his pasterns were from lying down and touching the spot on his belly or from trying to scratch his belly.

Anyway, I put generic athlete's foot cream (chlotrimazole I think) on the area for a few days (every other day) and it went away:) Vet never saw it, so I don't know what it was.

(Also, I did the black light test, and it wasn't ringworm.)