The synovial cyst of the wrist refers to a pocket filled with synovial fluid, most often benign, but bothersome, at the wrist joint. This pathology can have a tendon or joint origin.
Synovial fluid is important for lubricating joints. But in the event of too much secretion, it can lead to the appearance of a synovial cyst. On the wrist, we can distinguish the joint or arthrosynovial cyst from the synovial tendon cyst. The causes are not always known apart from hand trauma. As for the pain, it is not systematic. Find out what a synovial wrist cyst is, what its causes, symptoms and treatments are.
Synovial cyst of the wrist: what is it?
Causes of synovial cyst of the wrist
Synovial cyst of the wrist is a benign swelling, the cause of which is not particularly identifiable (idiopathic synovial cyst). This cyst is not a clinical sign of a hand or wrist disease, nor is it related to the possible presence of other cysts on the body. It results either from wear of the joint capsule at the wrist (arthrosynovial cyst), or from degeneration of the synovial sheath which envelops the wrist tendons (tenosynovial cyst). Trauma can be the cause (fall on the hand, rupture of the wrist ligaments, sprained wrist, fracture…). Furthermore, some people are more likely than others to develop a synovial cyst of the wrist. This is the case if they have suffered trauma to their wristif they have osteoarthritis or suffer from an inflammatory disease (rheumatism, rheumatoid arthritis…).
