CT and MRI have greatly influenced the indications for angiography as a diagnostic method for tumours of the muscular and skeletal systems. 59 patients with bone and soft tissue tumours were examined by arteriography (DSA) and the indications for arteriography were compared with CT (32 cases) and MRI (15 cases). Particular attention was paid to the presence of vessel encasement. Arteriography is the definitive method for demonstrating vascular involvement. Tomographic methods demonstrate the topographic relationships of the tumour and neuro-vascular structures. Angiography can also be used as an interventional measure pre-operatively or for palliative embolisation.