Synchronous melanosis of upper and lower urinary tract.

Authors :: Alzubaidi AN
Sekoulopoulos S
Birk A
Pham JT
Washburn E
Knoedler JJ
Source :: Urology case reports [Urol Case Rep] 2022 Dec 29; Vol. 46, pp. 102309. Date of Electronic Publication: 2022 Dec 29 (Print Publication: 2023).
Publication Year :: 2022
Abstract: 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.<br />Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (© 2022 Published by Elsevier Inc.)