The capsule sign in severe hydronephrosis
Lemaitre, G.; Meaux, P.
Journal de Radiologie d'Electrologie et de Medecine Nucleaire 56(3): 205-210
1975
ISSN/ISBN: 0368-3966 PMID: 1151919 Document Number: 88786
In severe obstructive disease of the kidney, with major distension of the intrarenal collecting ducts and marked thinning of the parenchyma, intravenous urography with high doses of contrast medium may reveal, almost pathognomic nephrographic abnormalities, such as, the dense capsule appearance, or septal appearances. The diagnostic value of these radiological appearances is all the greater in these very advanced cases of hydronephrosis, opacification of the excretory ducts can often not be obtained.