Canadian arthritis society
Polyarticular JRA often is symmetrical; that is, it affects the same joint on both sides of the body. canadian arthritis society Thumb arthritis. Some children with polyarticular disease have an antibody in their blood called IgM rheumatoid factor (RF). These children often have a more severe form of the disease, which doctors consider to be similar in many ways to adult rheumatoid arthritis. Systemic--Besides joint swelling, the systemic form of JRA is characterized by fever and a light skin rash, and may also affect internal organs such as the heart, liver, spleen, and lymph nodes. canadian arthritis society Viral arthritis. Doctors sometimes call it Still's disease. Almost all children with this type of JRA test negative for both RF and ANA. The systemic form affects 20 percent of all children with JRA. canadian arthritis society Abdominal wrist. A small percentage of these children develop arthritis in many joints and can have severe arthritis that continues into adulthood. What Causes Juvenile Rheumatoid Arthritis?JRA is an autoimmune disorder, which means that the body mistakenly identifies some of its own cells and tissues as foreign. The immune system, which normally helps to fight off harmful, foreign substances such as bacteria or viruses, begins to attack healthy cells and tissues. The result is inflammation--marked by redness, heat, pain, and swelling. Doctors do not know why the immune system goes awry in children who develop JRA. Scientists suspect that it is a two-step process. First, something in a child's genetic makeup gives them a tendency to develop JRA; then an environmental factor, such as a virus, triggers the development of JRA. What Are the Symptoms and Signs of Juvenile Rheumatoid Arthritis?The most common symptom of all types of JRA is persistent joint swelling, pain, and stiffness that typically is worse in the morning or after a nap. The pain may limit movement of the affected joint although many children, especially younger ones, will not complain of pain.
Canadian arthritis society
Osteo rheumatoid arthritis || Rheumatoid arthritis ra || Rheumatoid arthritis ra || Underarm pain diagnosis