Renal forniceal rupture

Dr Craig Hacking and Dr Henry Knipe et al.

Renal forniceal or calyceal rupture is the radiographic finding of a perirenal urine leak as a result of ureteric obstruction.

The renal fornices are the thin pointed projections, arising from the lateral aspects of each minor calyx, and extending a short distance into the renal columns. Each fornix contacts the renal pyramid on its inner surface.

The renal fornix is the most susceptible part of the renal collecting system to rupture from increased pressure 2,3

Causes include 1,2:

On non-contrast CT, perinephric low-density fluid and fat stranding will be present. On delayed phase imaging contrast will accumulate outside of the collecting system forming an urinoma 2

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Article information

rID: 50301
System: Urogenital
Tag: cases, cases
Synonyms or Alternate Spellings:
  • Renal calyceal rupture
  • Renal caliceal rupture

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Cases and figures

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    Case 1: left sided from calculus
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    Case 2: urinoma seconday to calyceal rupture
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