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Masticatory myositis | About Myositis

Masticatory myositis

An inflammatory disease which is found among dogs is known as Masticatory Myositis. This affects the chewing muscles of dogs. Large breed dogs are most commonly affected by this disease. A dog may suffer from immense pain while opening its mouth. The word Masticatory arises as they affect the mastication of dog, which means chewing muscles of dogs.

A dog can be affected by masticatory muscle myositis when it is less than 6 months. The disease affects mostly young dogs be it any gender. Breed of the dog matters a lot as this occurs mostly in large breeders. To know about masticatory myositis in detail we have to know some of the related terms in detail.

  • Masticatory muscles are used by dogs foe chewing. This includes temple and jaw muscles. They are basically very powerful.
  • Myositis refers to inflammation. So if the chewing muscles get inflammation then they are said to be Masticatoy Myositis.
  • Canine masticatory myositis occurs in dogs when their canines get affected. It becomes hard for dogs to eat when they suffer from this disease.

Muscles that gets affected

When a dog gets affected by either canine masticatory muscle myositis or masticatory muscle myositis the only part which gets affected is chewing muscles. The reason behind this that they have a very special structure due to a motor nerve and contain 2M muscle fibers which is only present in the jaws. When a dog gets affected by masticatory myositis these 2M muscles are attacked and the exact reason for the immune system to do this action is unknown.

Profile of an affected dog

German Shepherds, Doberman, Cavalier King Charles Spaniels, Labrador retrievers and Golden Retrievers are some of the breeds that are affected by masticatory muscle myositis. The disease affects both gender and average age for the patients who suffer from this disease is 3 years. It is easy to identify the dog affected by this disease as their head region starts hollowing and the whole face becomes thin. The affected dogs have bulged eyes and swollen masticatory muscles. The first symptom is said to be a fever and if the dog is treated at this earlier stage, the treatment become easy and curable. But to the vain, all owners recognise this disease only after they go to the extreme stage like appearance of muscle bulge and when the dog finds difficult to eat.

Treatment to be undergone

High doses of medication should be provided until the jaw starts opening normally. Once the jaw opens the dose can be reduced after certain months. Some dogs may have excessive urination, so it is better to test for bladder infection too. However in some cases medication cannot be stopped as there are chances for the disease to relapse. So it is advisable to take mild doses regularly. Muscle Biopsy is also a best idea if the inflammation is too high and scary. If the dog finds chewing food very painful, feed him with semi liquid foods. Avoid opening its mouth; instead you can give it some chewing toys which is a good physical therapy.

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