M65: Synovitis and tenosynovitis

Synovitis and tenosynovitis belong to a group of conditions centered around inflammation in the body. Synovitis occurs when the synovial membrane, which lines the joints and tendon sheaths, becomes inflamed, resulting in pain and sensitivity in the involved joint. This can arise from several causes such as injury, overuse, or underlying conditions like arthritis or gout. Tenosynovitis, on the other hand, is the inflammation of the fluid-filled sheath (synovium) that surrounds a tendon, often leading to pain, swelling, and difficulty in moving the affected joint. Commonly affected areas include wrists, hands and feet. This may develop from repetitive activity or from infectious diseases like gonorrhea. Because these conditions share a common mechanism of disease progression characterized by inflammation and resultant joint dysfunction, they often present similar symptoms including joint pain, swelling, and reduced range of motion. It's important to note that early intervention can often mitigate the progression of these conditions.