Localized primary amyloidosis of the prostate, bladder and ureters.

Primary amyloidosis of lower urinary tract is a rare entity and is usually localized to a single site. Its clinical features, and cystoscopic and radiological findings are indistinguishable from neoplastic or inflammatory lesions. We report an unusual case of amyloidosis involving multiple sites (prostatic stroma, trigone and lower ureters) in the lower urinary tract. MRI findings of bladder amyloid, which could be used to suspect this condition, are also described.