[Clinical and histologic findings in patients with renal amyloidosis].

Renal amyloidosis is a rare disease when compared to other kidney diseases. During the period of last fifteen years, at the Institute of Nephrology and Immunology in Sarajevo renal amyloidosis was diagnosed with 15 patients. The disease occurred more often with men than with women. Only during 1988, renal amyloidosis was revealed and followed up with five patients. The most common clinical manifestations of renal amyloidosis are nephrotic syndrome and chronic renal failure, with respective laboratory findings. Using immunofluorescent analysis of the kidney biopsy material, we discovered deposits of immunoglobulins of different intensity and deposits of lambda and kappa light chains of immunoglobulins. The intensity of lambda light chains is greater than that of kappa chains. The analysis of light microscopy showed nodular mesangial deposits and deposits along GBM without proliferation. The diagnosis of amyloidosis was confirmed by staining of amyloid. Application of therapy for amyloidosis was without any effect. Although renal amyloidosis is a rare disease, we want to point out disease as being an etiologic factor in nephrotic syndrome.