Ganglion Cyst

Ganglion cysts are noncancerous lumps that commonly develop near joints or tendons, especially in the wrist or hand. They form when fluid leaks out of a joint or tendon sheath and collects in a sac-like structure. This condition affects the musculoskeletal system and can cause a visible bump that may be soft or firm to the touch. While often painless, these cysts can sometimes cause discomfort or limit joint movement if they press on nearby nerves or tissues. The size of the cyst can fluctuate, sometimes becoming larger with joint activity. Diagnosis is usually straightforward based on physical examination and imaging. Treatment varies depending on symptoms but often involves monitoring or removal if problematic.

Ganglion cyst is a benign, fluid-filled cyst arising from the synovial lining of joints or tendon sheaths, most commonly around the wrist. It results from mucinous degeneration and herniation of synovial tissue, leading to accumulation of thick, gelatinous fluid within a cystic structure. The exact cause is unclear but is often associated with repetitive joint stress or trauma. These cysts are typically located on the dorsal aspect of the wrist but can occur on volar surfaces or other joints. Clinically, they present as a palpable, well-circumscribed, and sometimes fluctuant mass that may cause pain or nerve compression symptoms. The cyst communicates with the joint space via a stalk, which can be demonstrated on imaging. Although benign, ganglion cysts are significant due to their potential to impair joint function or cause discomfort.