A Siberian Husky's coat is thicker than that of most other dog breeds, comprising two layers: a dense undercoat and a longer topcoat of short, straight guard hairs. It protects the dogs effectively against harsh Arctic winters, but the coat also reflects heat in the summer.
Interstitial lung disease associated with RA typically includes interstitial pneumonias and bronchiolitis (inflammation of the small air passages of the lungs called the bronchioles), as well as damage to alveoli. The symptoms of interstitial lung disease include shortness of breath, pain, and difficulty breathing.1,2. The formation of nodules in the lungs occurs in a small minority of patients with RA (less than 1%). RA nodules are more common in men than women. Typically, nodules are asymptomatic.
Inflammation of joints in RA typically occurs in a symmetrical fashion, in other words, joints on both sides of the body will be affected. The earliest joints to be affected by inflammation in RA are usually the hands (including wrists) and feet. The elbow may also be affected early in the course of the disease and is the site most frequently affected by RA nodules. The shoulder is a common site for RA-related inflammation.