M67.2: Synovial hypertrophy, not elsewhere classified

Synovial hypertrophy refers to the thickening of the synovial membrane, which lines the joints in our body. Normally, this membrane produces a fluid that helps in reducing friction within the joints during movement, thus making it essential for joint functionality. However, when the synovial membrane becomes hypertrophied or enlarged, it can create excess fluid leading to swelling and pain in the affected joint. This condition is often seen to occur in the knees, but can potentially affect any joint in the body. Symptoms may vary based on the severity of the condition and the joint involved, but common signs include joint pain, swelling, stiffness, and difficulty in movement. Synovial hypertrophy is not a disease in itself but is often associated with other health conditions such as rheumatoid arthritis, gonococcal arthritis, or other inflammatory joint diseases. The underlying cause of this condition often helps determine the specific course of the disease progression.