 renal amyloidosi biopsi studi relationship amount amyloid deposit kidnei clinic pictur review 14 case renal amyloidosi diagnos renal biopsi larg percentag patient nephrot syndrom 11 patient reflect criteria renal biopsi institut etiolog amyloid deposit clearli correl amount amyloid deposit kidnei sever clinic renal diseas patient deposit glomerulu heavier deposit sever renal diseas 7 patient biopsi bone marrow abnorm type number plasma cell ag rang primari amyloidosi appear amyloidosi secondari myeloma amyloidosi suspect patient proteinuria nephrot syndrom renal failur 