In a 64 years old patient with increasing oedema of the legs and massive untreatable ascites, colour coded duplex sonography and angiography revealed a wide arteriovenous fistula (AVF) of unknown origin between right common iliac artery and vein. Avoiding surgical intervention, the AVF was eliminated by applying an endovascular stent covering the site of the fistula. After intervention oedema and ascites disappeared, and colour doppler half a year later showed a good long term result.