<unk>  is a multi-systemic condition characterized by repeated episodes of inflammation and deterioration of cartilage. The often painful disease can cause joint deformity and be life-threatening if the respiratory tract, heart valves, or blood vessels are affected. The exact mechanism is poorly understood, but it is thought to be related to an immune-mediated attack on particular proteins that are abundant in cartilage. The diagnosis is reached on the basis of the symptoms and supported by investigations such as blood tests and sometimes other investigations. Treatment may involve symptomatic treatment with painkillers or anti-inflammatory medications, and more severe cases may require suppression of the immune system.
Relapsing polychondritis
Rheumatoid nodulosis
Reactive arthritis
Juvenile idiopathic arthritis
Psoriatic arthritis
Discoid lupus erythematosus
Polymyalgia rheumatica
Rheumatoid arthritis