Idiopathic Nephrotic Syndrome
A rare primary glomerular group of diseases characterized by the triad of edema, massive, or nephrotic-range, proteinuria and hypoalbuminemia, for which there is no known cause. Depending on response to treatment, disease is distinguished into steroid-sensitive nephrotic syndrome (SSNS) and steroid-resistant nephrotic syndrome (SRNS), with the latter being further divided, depending on occurrence, into familial or sporadic forms.