GANGLIUS - cystic formation in the tissue surrounding the articular bag or vagina tendons. It is located more often on the dorsal surface, less often on the palmar surface of the hand, in the wrist area, on the dorsum of the foot. The ganglion has, as a rule, distinct contours, its dimensions are from 0.5 to 5-6 cm in diameter. In the cavity of the ganglion contains a gelatinous homogeneous mass. The patient may complain of a cosmetic defect, sometimes on aching or arching pain in the ganglion after exercise. Treatment is prompt. Relapse is possible.