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Rare disease
CASE REPORT
Unusual case of simple urinary bladder melanosis with complete resolution
  1. Zaid Mera1,2,
  2. Sheena Patel3,
  3. Omar Qassid4,
  4. Roland England1
  1. 1Department of Urology, Kettering General Hospital NHS Foundation Trust, Kettering, UK
  2. 2Department of Surgery and Cancer, Imperial College London, London, UK
  3. 3Department of Urology, Kettering General Hospital NHS Foundation Trust, Kettering, UK
  4. 4Department of Pathology, University Hospitals of Leicester NHS Trust, Leicester, UK
  1. Correspondence to Dr Zaid Mera, zaid.mera{at}nhs.net

Summary

A 66-year-old man presented with a long history of recurrent attacks of urinary retention and lower urinary tract symptoms. Flexible cystoscopy showed a urethral stricture. Follow-up cystoscopy 7 years later for recurrent symptoms demonstrated unusual extensive mucosal brown to black pigmentation, which proved histopathologically to be a simple bladder melanosis. Follow-up demonstrated complete resolution over a period of 1 year with no specific treatment. In this report, we highlighted a rare bladder abnormality with uncertain natural history.

  • urology
  • pathology
  • urinary tract infections
  • prosthesis failure
  • malignant and benign haematology

https://doi.org/10.1136/bcr-2018-224361

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    Footnotes

    • Contributors ZM is the corresponding author and involved directly in the management of the case, gaining a consent and collecting the data with reviewing the literature and writing the case report. RE is the supervising consultant with a direct contribution to the work. OQ is the histopathology consultant who helped in understanding and presenting the histopathology findings. SP is a urology trainee in our hospital. and she participated directly in going through this unusual case and reviewing the literature.

    • 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.