[Colonic changes in perinephritis. Value of double contrast examinations (author's transl)].

The differential diagnosis of cancer and abscesses of the kidneys with perinephritic inflammatory masses is sometimes difficult. In these cases, radiological examination of the colon can be of great value by demonstrating the presence of inflammatory colonic perivisceritis. Double contrast examination can reveal the presence, not only of an inflammatory type of narrowing, but characteristic changes in the mucous folds of the transverse "in palisade" type with thickening extending throughout the circumference of the colon. These appearances are totally different from those observed in malignant colonic perivisceritis. The use of double contrast examination of the colon, in cases of renal masses and associated fever, can enable the choice to be made of an adequate route of approach (lumbotomy), of it demonstrates the characteristic appearances of inflammatory perivisceritis.