Remission of nephrotic syndrome after thalidomide therapy in a patient with Castleman's disease.

Castleman's is an uncommon lymphoproliferative disorder secondary to lymphoid follicle hyperplasia and marked capillary proliferation with endothelial hyperplasia. This illness can be associated with glomerulonephritis (GN). Here, we report a case with steroid-dependent nephrotic syndrome secondary to proliferative mesangial glomerulonephritis in a patient with Castleman's disease, that was diagnosed several years before.