Wrist arthroscopy

Condition

Ganglion cyst

A benign cyst filled with thick, clear mucin and joined by a stalk to a nearby joint capsule or tendon sheath; its wall has no true synovial lining. It is the commonest lump of the hand and wrist and arises most often on the back of the wrist over the scapholunate ligament, on the front of the wrist beside the radial artery, from a finger's flexor tendon sheath, or as a mucous cyst at the end joint. About half resolve without treatment.