X-Linked Nephrolithiasis Type I, also known as x-linked nephrolithiasis with renal failure, is related to nephrolithiasis, x-linked recessive, with renal failure and cerebellar ataxia, mental retardation and dysequlibrium syndrome. An important gene associated with X-Linked Nephrolithiasis Type I is VIT (Vitrin). Affiliated tissues include kidney.