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SynopsisCodesDifferential Diagnosis & PitfallsBest TestsReferences
Medullary sponge kidney
Other Resources UpToDate PubMed

Medullary sponge kidney

Contributors: Catherine Moore MD
Other Resources UpToDate PubMed

Synopsis

Congenital malformation of the terminal collecting ducts near the calyces of the renal pyramids. Malformed ducts dilate, and cysts form in the medulla.

Typically these malformations do not result in any symptomatology, and diagnosis is incidental. Medullary sponge kidney is associated with an increased risk of nephrolithiasis, hematuria, and urinary tract infection.

Prognosis is excellent and typically renal function is preserved.

Codes

ICD10CM:
Q61.5 – Medullary cystic kidney

SNOMEDCT:
236443009 – Medullary sponge kidney

Differential Diagnosis & Pitfalls

To perform a comparison, select diagnoses from the classic differential

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Best Tests

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References

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Last Updated:02/18/2016
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Medullary sponge kidney
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A medical illustration showing key findings of Medullary sponge kidney : Flank pain, Microscopic hematuria, Gross hematuria
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