[Primary localized bladder amyloidosis].

Amyloidosis constitutes a group of storage diseases concerning various proteins, classified as a function of the type of protein. Localized pseudo tumoral amyloidosis of the urinary tract is a rare affection with bladder like the most frequent localisation. In spite of contribution of computerized tomography scans and MRI, the diagnosis is always based on histological examination of cystoscopy samples. Investigations are required to eliminate a generalized amyloidosis or a malignant lymphoproliferation. Treatment should be as conservative as possible on the outside of a massive and recurrent haematuria to be able to involve vital prognosis.