Evidence Hub

Melanosis of the urinary bladder with associated urinary tract infection

Lauren Nesi, Jordan Sarver, Paramjot Gogia, Ali M. Baydoun, Barrett Anderson, Dongping Shi, M. Abdelhady

Urology Case Reports, 2025

Abstract

Melanosis of the bladder is an exceedingly rare benign condition that can mimic more serious urothelial pathologies. Here, we analyze the clinical presentation, associated symptomatology, and follow-up of a patient presenting with melanosis and associated urinary tract infection. This patient is a 72-year-old male undergoing workup for gross hematuria, lower urinary tract symptoms, and recurrent urinary infections. We subsequently discuss two additional incidental findings of melanosis and associated urinary tract infection at our institution, and introduce novel context for this condition that currently lacks a standardized management protocol. To our knowledge, this is the first case series on melanosis vesicae.

How strong is the evidence?

Evidence Hub reads this as a case series, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

Read the paper

Related studies

Go deeper in Evidence Hub

Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.

Open this study Sign up free