HYGROMA - accumulation of serous mucous membrane or (less commonly) serofibrinous fluid in the cavity of the periarticular synovial sac or tendon sheath. Predisposing factor is chronic tissue trauma, usually associated with the professional activity of the patient. Hygroma is a rounded, from 1 to 5 cm in diameter, formation of a soft-elastic consistency, weakly painful on palpation and partially displaced with the tendon.
Treatment for small hygromas is conservative: ultraviolet radiation, paraffin baths, etc. For large hygromas, their removal is indicated.
Prevention is to eliminate the conditions that contribute to the permanent trauma to the tissues above the joints and tendons.