Nephrosis

Nephrosis is any of various forms of kidney disease (nephropathy). In an old and broad sense of the term, it is any nephropathy,^[1] but in current usage the term is usually restricted to a narrower sense of nephropathy without inflammation or neoplasia,^[2] in which sense it is distinguished from nephritis, which involves inflammation. It is also defined as any purely degenerative disease of the renal tubules.^[1] Nephrosis is characterized by a set of signs called the nephrotic syndrome.^[2] Nephrosis can be a primary disorder or can be secondary to another disorder.^[2] Nephrotic complications of another disorder can coexist with nephritic complications. In other words, nephrosis and nephritis can be pathophysiologically contradistinguished, but that does not mean that they cannot occur simultaneously.^{[citation needed]} Types of nephrosis include amyloid nephrosis and osmotic nephrosis.^{[citation needed]}