<unk>  is any of various forms of kidney disease (nephropathy). In an old and broad sense of the term, it is any nephropathy, but in current usage the term is usually restricted to a narrower sense of nephropathy without inflammation or neoplasia, in which sense it is distinguished from nephritis, which involves inflammation. It is also defined as any purely degenerative disease of the renal tubules.<unk>  is characterized by a set of signs called the nephrotic syndrome.<unk>  can be a primary disorder or can be secondary to another disorder. Nephrotic complications of another disorder can coexist with nephritic complications. In other words,<unk>  and nephritis can be pathophysiologically contradistinguished, but that does not mean that they cannot occur simultaneously. Types of<unk>  include amyloid<unk>  and osmotic<unk> .
Nephrosis
Pyonephrosis
Nephritis
Hydronephrosis
Interstitial nephritis
Kidney cancer
Adrenalitis
Phrenitis