[Radiological diagnosis of pyelonephritis].

The standard examination method of the radiological diagnostics of pyelonephritis is the EU. In restricted function of the kidney the intensive urography is to be used. Above all decent changes of form and tonus in the hollow system show diagnostic problems. Concerning a pyelonephritis they can be classified only in connection with clinical data. In more than 90% of the examinations the chronic pyelonephritis is to be recognized in the EU. It is referred to aspects of the radiation load in the EU.