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Extrarenal Pyelocalyceal System

The calyceal system and renal pelvis lie outside the renal parenchyma from the renal papillae onward. An extrarenal calyceal system has no clinical significance but is more common in the presence of concomitant malformations.

**Extrarenal pyelocalyceal system** in crossed renal ectopia with hydronephrosis: the kidney shows a clear separation between the collecting system and renal parenchyma; the hydronephrosis was caused by ureteropelvic junction obstruction. With kind permission, Dres. Trenschel, Engels, Kiebach, Kosch und Stahl, Radiologische Praxis Augsburg.

Kidney diseases

Index

Column hypertrophy

Index: 1–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

References

Malament, M.; Schwartz, B. & Nagamatsu, G. R.
Extrarenal calyces: their relationship to renal disease.
Am J Roentgenol Radium Ther Nucl Med, 1961, 86, 823-829

Deutsche Version: Extrarenales Kelchsystem

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