[Report of 2 cases of isolated, primary amyloidosis of the male urethra and urinary bladder of a female].

Primary localized amyloidosis of the bladder and urethra is a rare condition. Two cases of isolated primary amyloidosis, of the urethra in a man and of the bladder in a woman, are reported. The clinical specificity of the location and the specific therapy are discussed. We draw attention to the extended, palette of diagnostic investigations now available and the new classification made possible by the introduction of immunohistochemistry and immunoelectron microscopy.