Abstract

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• Amyloidosis is a protein folding disorder characterized by the deposition of fibrillar proteins into solid organs or tissues. Primary localized amyloidosis of the bladder is very rare and can mimic bladder cancer in its presentation with hematuria, lower urinary tract symptoms or a mass on imaging. A case of localized amyloidosis of the bladder in a 48-year-old man with painless gross hematuria and evidence of bladder mass on ultrasound is presented. Amyloidosis is a rare but important non-malignant process of the bladder. We present a review of the literature and suggestions for management of this rare bladder disease.