Figure 1From: Superior vena cava obstruction presenting with epistaxis, haemoptysis and gastro-intestinal haemorrhage in two men receiving haemodialysis with central venous catheters: two case reports Magnetic resonance venography of central veins of patient number one. There is loss of normal flow void with extensive echogenic material in the SVC and both brachiocephalic veins extending into the subclavians.Back to article page