What is myositis from the mastic muscle?

myositis of the masting muscles (mmm) is a muscle disease that causes inflammation in the chewing muscles, muscles used for chewing, in dogs. Symptoms usually include jaw pain, excessive drooling and swelling of the jaw muscles. Chronic MMM can lead to inability to open and close the mouth called trism. It is the most common type of myopathy or muscle disease that affects dogs. The reason is the presence of certain fibers in the chewing muscles that are missing in the rest of the body. These fibers of chewing muscle (2m) resemble protein structures of certain bacteria, causing the immune system of the animal targeting these fibers as foreign bodies and attacking them. This process causes muscle inflammation and, if chronic, atrophy of the participating muscles.

There are two types of myositis from ointment muscle: acute and chronic. The signs for each may vary, with the chronic form being the most common of the two. Acute mmm usually involves pain and swelling of the male muscle, fever and enlarged mandibularLymph nodes. Exophthalm, known as protruding eyeballs and blindness from the optical nerve compression, may also occur. Chronic MMM may contain any of the above symptoms, but may also show recurring inflammation and even atrophy of chewing muscles.

larger breeds of dogs include most cases of myositis TMastics muscles. The German shepherds, Kavalir King Charles Spaniels, Doberman Pinschers and Retrievry may be more susceptible to this disease, although it may occur in any breed. Most reported incidents include young or middle -aged.

The diagnosis of myositis from mastics muscle myozitis is performed using a 2m antibody test or muscle biopsy biopsy. From the 2M antibody test, false negative disease has already caused the disease to destroy 2m fibers and led to severe atrophy. An animal that has received a negative outcome of the 2m antibody test but continues to showSigns of MMM, still retain 15 % chance to have myositis from mastics.

corticosteroids for four to six months are the usual way of treatment of mmm. The drug is administered in decreasing doses during the treatment period. This usually leads to a renewed function, although the extent of this function is dictated by the amount of atrophy already present and muscle damage. It is possible that MMM is repeated even after the treatment and the animal seemed to be healed.