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Dermatomyositis

Tiggers: Have You noticed in Your country and Your collies any Dermatomyositis, commonly known as DM? How about dogs health-history? Some links about DM: http://www.hauttierarzt.de/hautkrankheit/dermatomyositis.html http://www.garwoodkennels.com/health.htm Please, some discussion about this subject (so please take another skin & immunologic diseases with).

Ответов - 7

Mabinogion: i have not heard about smooth collie's here in nederland yet ,i know smooths from american lines have that sometimes.

OneWay's: I think we had one dog here in Sweden with that... he had roughs in the pedigree, and from a small breeder. But the breeder say it wasn't DM, but the vet says, so I don't know and I don't care, because no lines I'm interested in anyway.

Lisa: Do you know if this illness could be healed? I just wonder because the articles say that the symptoms can disappear, so there must be something that one could do against it...

catrin: There is at least one smooth in Finland who had it. The rumour goes that there is another one too, but it really is a rumour.

Alertness: I've heard people say that Dermatomyositis is very rarely seen in the European collie population, and that it is mostly diagnosed in the States. But it is important to note that even though the disease is rarely diagnosed in Europe, it doesn't mean it never occurs. With a disease like this there may be collies out there that has it but has never been diagnosed, especially the mild cases (the vet may from a superficial examination think it is only mange or some other skin condition). I've talked to an experienced breeder who has an indebt knowledge of American collie lines, and she thinks that it is not so that American lines are that much sicker or more afflicted with a lot more disease than the European lines. Why do we then hear more about it in the USA? Maybe because American breeders overall are much more open about these conditions are are testing for them to a much greater extent? Geneticists in he States along with the breed clubs and breeders are also very interested in researching and finding genetic markers to be able to develop gene tests for the specific diseases, so it is a lot more talk about it over there than it is here. Copied and pasted from one of Tigger's links: "Normally, these symptoms are first noticed in an infected dog between 8 and 16 week of age, although there are rare cases of late development appearing in animals 4 - 7 years of age. In Mild cases, the skin symptoms could sometimes fade away and never be seen again. While in the more severe cases the dog will have the lesions for life. Muscle disease may develop along side the skin symptoms. Muscle degeneration is usually first noticed in the areas around the top of the head and jaw. When the disease progresses, general atrophy of the major muscles may develop affecting the neck, shoulder and hip muscles causing sever pain and weakness inhibiting simple movement. It is impossible to diagnose DM simply by looking at the dog! The visible symptoms described here could be ringworm, Demodectic mange or one of many other skin problems. A biopsy of an active lesion is the only sure way of a positive diagnosis. DM cannot be diagnosed by any other tests or bloodwork. As it is a skin disease, a Dermatologist would be the best choice to determine the disease." Berit

Lisa: So you could only diagnose this illness as soon as your dog gets sick... that's tricky... some of the dogs don't show symptoms so there is no chance to know if they have it or not...

Alertness: What I've heard is that if your collie puppy gets a skin lesion on its nose or front legs, do not treat it with medicines like antibiotics! The antibiotics will suppress the lesions and remove the symptoms, and you will never know whether the body's immune system would have been strong enough to take care of it itself. Puppies may have temporarily weak immune system as they grow up, but with age the immune system strengthens if they are normally healthy. But if the lesions were caused by dermatomyositis the immune system would probably not have coped by itself. But with antibiotics one will never discover this... A vet who is experienced wth dermatomyositis knows this, but others will aply antibiotics way too soon, making it hard to diagnose correctly. That's one of the reasons why I think American collies are diagnosed with it more often than their European relatives, because American vets are possibly more aware of the condition in collies than most of our European vets? Also, if a dog has dermatomyositis and it's only a mild case the lesions may still return at a later age when the dog is exposed to stress or other illnesses that weaken its immune system. If the owner hasn't had the lesions checked earlier then it's about time to be concerned and have a biopsy done to the lesions... I myself remember having seen a smooth collie with a nose lesion at a show in Scandinavia (the dog was not entered to the show but the owners were visiting ringside and I talked to them and noticed the nose). This smooth was a grown-up bitch. She could very well have had a mild case of dermatomyositis, but we will probably never know... When the symptoms are not more severe than some skin lesions some owners would not even think to take the dog to a vet, even less have a biopsy taken. Berit



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