What causes a ganglion cyst to form?
The cause of ganglion cysts is not entirely clear, however, it is thought that activities or occupations causing overuse of particular joints is the primary cause of ganglions. The soft tissues or capsule surrounding a joint may become inflamed and swollen with lubricating fluid. The membrane surrounding a tendon may also tear following overuse type injuries. This could cause fluid to leak out into a small soft tissue sac which continues to swell and eventually forms a ganglion cyst. Activities involving any form of repetitive overuse of joints or tendons can cause ganglions of the foot. These include skiing, jumping, running and other contact sports. How is a ganglion cyst diagnosed? Physical examination and radiographic examination are performed often in conjunction with an ultrasound scan and sometimes magnetic resonance imaging (MRI). The fluid within the ganglion may also be removed for evaluation. How is a ganglion cyst treated? Some ganglion cysts spontaneously disappear without
