<unk>  is a hereditary disorder of the renal tubules characterized by the presence of carbohydrates and amino acids in the urine, excessive urination, and low blood levels of potassium ions and phosphates. The body accumulates the amino acid cystine within cells. Excess cystine forms crystals that can build up and damage cells. These crystals negatively affect many systems in the body, especially the kidneys and eyes.
Cystinosis
Cylindruria
Xanthinuria
Chalicosis
Onychauxis
Lipiduria
Soteria
Onychodystrophy