[Radiologic diagnosis of retroperitoneal fibrosis (author's transl)].

The value of the various radiologic techniques for the diagnosis and follow-up of retroperitoneal fibrosis are discussed on the basis of two case reports and an analysis of 48 patients. The most important technique is the IVP with breathing and profile exposures. AP and lateral pre-operative retrograde pyelography is often essential for the diagnosis. Cavography and arteriogram should always be done in this condition, since they permit assessment of vascular compression and extension distally of the fibrosis. MDP and contrast enema should be employed, if the signs warrant it. These radiologic techniques permit, when positive, combined surgical planning by various surgical specialists.