Synchronous melanosis of upper and lower urinary tract

Urothelial melanosis is an exceptionally rare diagnosis, with less than 25 cases being reported in the literature. Melanosis of the urothelium is characterized by abnormal melanin deposition within tissues, producing a black, velvety appearance to the urothelial mucosa. We present a 67-year-old male...

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Bibliographic Details
Main Authors: Ahmad N. Alzubaidi, Stephen Sekoulopoulos, Alexander Birk, Jonathan T. Pham, Erik Washburn, John J. Knoedler
Format: Article
Language:English
Published: Elsevier 2023-01-01
Series:Urology Case Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214442022003217
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Summary:Urothelial melanosis is an exceptionally rare diagnosis, with less than 25 cases being reported in the literature. Melanosis of the urothelium is characterized by abnormal melanin deposition within tissues, producing a black, velvety appearance to the urothelial mucosa. We present a 67-year-old male undergoing cystoscopy during a routine percutaneous nephrolithotomy (PCNL), who was found to have diffuse bladder melanosis extending up the ureter and into the renal pelvis. To our knowledge, this is the first reported case of synchronous melanosis of upper and lower urinary tract.
ISSN:2214-4420