The value of computed tomography in the staging of tumours of the renal pelvis

The computer tomographic appearances of space-occupying lesions in the renal pelvis in 15 patients are described, and the place of CT in the radiological diagnosis is discussed. The clinical symptoms of renal tumours are often not characteristic, and conventional radiological methods frequently produce non-specific appearances. Computed tomography, which is non-invasive, is therefore a suitable method for diagnosting space-occupying lesions in the renal pelvis at an early stage. Prognosis depends greatly on extrapelvic spread, which can be demonstrated by CT alone. (orig.)