Lymph collection in a newly developed cavity. Depending on its anatomic localization and the presence of any associated lesions, some varying chylous component (lymph-chylocele) may also be observed. It is a common complication after lymphadenectomy, but it may also develop as a primary manifestation. Symptoms of lymphocele depend on its size and on whether it presses against surrounding tissues and structures. Lymphocele is treated by surgery with its radical resection associated with concurrent laser “sealing” of any lymphatic vessels, which could give origin to lymphorrhoea or even a recurrency.