GANGLI - cystic mass in the tissue surrounding the joint bag or tendon sheath. It is located more often on the back surface, less often on the palmar surface of the hand, in the wrist, on the back surface of the foot. The ganglion has, as a rule, distinct contours; its dimensions are from 0.5 to 5-6 cm in diameter. The ganglion cavity contains a gelatinous homogeneous mass. The patient may complain of a cosmetic defect, sometimes aching or bursting pain in the ganglion after exercise. Surgical treatment . Relapses are possible.