Kaposi's sarcoma in patients with membranous nephropathy.

Although the relationship between Kaposi's sarcoma (KS) and renal transplant has been well described, there are rare cases of KS concurrent with membranous glomerulonephritis or other glomerular diseases. In this report, a patient with membranous glomerulonephritis that accepted long-term prednisolone and cyclosporine immunosuppressive therapy developed skin KS. Withdrawal of immunosuppressive treatment resulted in the disappearance of KS.