Diagnostic Pathology (Jul 2009)

A unique case of urinary bladder simple melanosis: a case report and review of the literature

  • Hollowell Christopher,
  • Hollowell Melvin,
  • Zaidi Syed Y,
  • Jin Bo,
  • Saleh Husain

DOI
https://doi.org/10.1186/1746-1596-4-24
Journal volume & issue
Vol. 4, no. 1
p. 24

Abstract

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Abstract Melanosis refers to abnormal or excessive deposition of melanin pigment in the cells and/or tissue, which can be seen in any organ but commonly in skin and oral mucosa. Melanosis of the urinary bladder is an extremely rare benign condition and only a handful of cases been reported in the English literature before. In this article, we report a new case of urinary melanosis, describe the differential diagnostic features from pseudomelanosis and offer clues for correct diagnosis. We also provide comprehensive review of the literature on the subject.