Successful therapeutic use of rituximab in refractory membranous glomerulonephritis.

We present the case of a 57-year-old man with nephrotic syndrome secondary to idiopathic membranous glomerulonephritis unsuccessfully treated with angiotensin-converting enzyme inhibitor (ACEI), angiotensin II receptor antagonist (ARA), prednisone and chlorambucil. After treatment with rituximab, we observed a progressive decrease of proteinuria and normalization of serum albumin. 18 months after treatment, he remained in remission. No adverse reactions to rituximab were noted throughout follow-up.