[Cystic hygroma of the neck].

Cystic hygroma of the neck is usually localised to the postero-lateral triangle. Acute intervention is necessary if there is compression of the respiratory passages. Other indications for surgical intervention are related to cosmetic appearances, the results of infection, rapid growth or rupture. Cystic lymphangioma should be removed early. If vital structures are involved in the lymphangioma, it is better to leave a residue of lymphangioma behind than to attempt radical excision.