synovitis
Quick Summary
Synovitis is a medical term for inflammation of the synovial membrane, which lines the joints. This inflammation can be a symptom of various joint diseases and conditions. When joints become inflamed, common symptoms include pain, stiffness, swelling, and redness around the affected joint. Fluid may also accumulate within the joint cavity. In severe cases, this inflammation can damage joint cartilage and bone, leading to deformities and loss of mobility, a condition known as ankylosis. Synovitis can be caused by infections, such as those from bacteria, fungi, or viruses, or it can be associated with other conditions like erythema nodosum or sarcoidosis.123
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