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Medullary sponge kidney and Caroli’s disease in a patient with stricture urethra: look for the hidden in presence of the apparent
  1. Rahul Janak Sinha,
  2. Ashish Sharma,
  3. Vishwajeet Singh and
  4. Siddharth Pandey
  1. Department of Urology, King George’s Medical University, Lucknow, Uttar Pradesh, India
  1. Correspondence to Dr Ashish Sharma, ashishuc343{at}


Caroli’s disease is a rare congenital disorder with incidence rate of approximately 1 in 1 000 000 population. Renal anomalies which may be associated with Caroli’s disease include medullary sponge kidney (MSK), cortical cysts, adult recessive polycystic kidney disease and rarely autosomal dominant polycystic kidney disease. Exact incidence of MSK in patients of Caroli’s disease is not known. There are only a handful of reported cases of this association in literature. We hereby report a case of Caroli’s disease with MSK with nephrocalcinosis. He presented to primary health centre with symptoms of urethral stricture due to lichen sclerosus et atrophicus and was managed with repeated co-axial dilatation but was never evaluated for underlying chronic renal insufficiency due to MSK. The thorough clinical examination and proper evaluation is important in patient of urethral stricture with underlying chronic renal insufficiency to avoid delayed diagnosis, management and related complications.

  • urology
  • radiology
  • chronic renal failure
  • congenital disorders
  • pancreas and biliary tract

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  • Contributors AS conceived the case report. RJS, AS and SP were major contributors towards writing the manuscript. RJS, AS and VJS treated the patient and also interpreted the patient data. RJS, AS and SP were involved in the review and critical analysis. All authors read and approved the final manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.