Urology Case Reports (Nov 2022)

An extremely rare case of pseudomelanosis of the urinary bladder

  • M. Duijn,
  • S.L. Croonen,
  • J.A. Van der Zee

Journal volume & issue
Vol. 45
p. 102193

Abstract

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Pseudomelanosis (PM) is a rare, benign, condition that is characterized by deposition of melanin and/or melanin-like pigment in mucosal cells and macrophages and is best known as the entity pseudomelanosis coli.Pseudomelanosis primary of the urinary bladder has been reported only in a handful of cases worldwide. This article reports an extremely rare case of pseudomelanosis of the urinary bladder in a 79-year-old male with a history of macroscopic painless hematuria.

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