[Metastasising carcinoma of the renal pelvis after Thorotrast pyelography].

A carcinoma of the renal pelvis was diagnosed in a female patient 42 years after a retrograde Thorotrast pyelogram. The patient died as a result of the carcinoma at the age of 60. The literature is reviewed. As a result of this case, the need is stressed for early recognition of Thorotrast depositis in the kidney. In this case it was demonstrated by autoradiography. Appropriate treatment is discussed.