Melanosis of the Urinary Bladder – A Case Report and Review of the Literature

A case report of melanosis of the bladder within a bladder diverticulum and associated Aerococcus urinary infection

“…Typically, cystoscopy reveals the presence of multifocal pigmentation ranging from dark brown to black, which can be observed in various regions within the bladder. 1 There has been a few reports of melanosis of the bladder with concurrent urothelial carcinoma or malignant melanoma. However, due to the small number of reported cases and lack of follow up, an association between the two cannot be firmly established.…”

“…This disease is characterized by the deposition of melanin within the bladder urothelium, making the epithelium appear dark and velvety. 1 Further evidence is required regarding its’ suggested association with certain urinary tract infections, malignancy of the urinary tract and overall clinical signifance. 2 We report a case of melanosis vesicae in a patient with a pertinent history of lower urinary tract symptoms (LUTS), urinary retention, bladder diverticula and concurrent urinary infection with Aerococcus species.…”