HYGROMA - an accumulation of serous-mucous or (less commonly) serous-fibrinous fluid in the cavity of the periarticular synovial bag or tendon sheath. A predisposing factor is chronic tissue trauma, usually associated with the patient's professional activities. Hygroma is a soft-elastic consistency rounded from 1 to 5 cm in diameter, slightly painful on palpation and limited to shift along with the tendon.
Treatment for small hygromas is conservative: ultraviolet irradiation, paraffin baths, etc. For large hygroma, their removal is indicated.
Prevention is to eliminate the conditions that contribute to the permanent trauma of tissues over joints and tendons.