Five patients (4 men and one woman) aged 48-82 years who were suffering from superior vena cava (SVC) syndrome had Wallstent implanted percutaneously to relieve the obstruction. After stent placement, all cases received anticoagulant therapy with heparin. However one transient stent thrombosis occurred, stent placement resulted in complete relief of all patients. Wallstent placement could be an extremely useful treatment for SVC syndrome and should be the treatment of choice in all cases where SVC obstruction occurs or recurs, following chemotherapy or radiotherapy.