What is a Ganglion or non cancer cyst?
A ganglion is the most common mass that develops in the hand. Ganglion cysts are benign lesions. A ganglion can be described simply as a fluid-filled sac arising from an adjacent joint capsule or tendon sheath. A ganglion can arise from almost any joint or tendon sheath in the wrist and hand. The following drawings describe the most common sites for presentation of a ganglion. A ganglion at the distal finger joint near the fingernail may cause deformity. A ganglion located on the palmar surface of the wrist. A ganglion on the back of the wrist may originate from the wrist joint.