Medullary sponge kidney


Patient with abdominal pain. Lab results show an elevated serum creatinine.

Patient Data

Age: 30 years
Gender: Male

Diffuse medullary calcifications in both kidneys.

Bilateraly nephrolithiasis and right ureterolithiasis.

Cystic like dilatation of the renal calyces in the right kidney.

Atrophic left kidney.

Case Discussion

Medullary sponge kidney is a sporadic condition diagnosed during workup for renal stones.

Complications include:

  • urinary tract infection
  • hematuria
  • nephrolithiasis-ureterolithiasis

Clusters of pyramidal medullary calcification are characteristic (nephrocalcinosis).

Differential diagnosis include:

  • hyperparathyroidism
  • renal tubular acidosis
  • hypervitaminosis D
  • milk-alkali syndrome
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Case information

rID: 38191
Published: 10th Jul 2015
Last edited: 14th Aug 2019
System: Urogenital
Inclusion in quiz mode: Included

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