Answer:
Ganglions are the most common soft tissue tumors of the hand. More common in women, generally occur between the second and fourth decades, but not rare in children. Histologically, the wall is made up of compressed collagen fibers and is sparsely lined with flattened cells without evidence of an epithelial or synovial lining. The contents are mucinous made up of glucosamine, albumin, globulin, hyaluronic acid. They occur at the dorsal wrist 60 to 70 percent of the time, usually directly over the scapholunate ligament, but can be anywhere between the extensor tendons. Volar wrist ganglions occur second most commonly, between 18 and 20 percent, usually directly over the distal edge of the radius or over the scaphoid tubercle. Usually arises from the radiocarpal joint between the FCR and APL tendons. May be intertwined with radial artery. Also can arise from scaphotrapezial joint. Treatment is excision of the cyst to include a segment of the involved joint capsule.