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In medicine, sclerosis (also spelled sclerosus in the names of a few disorders; from Greek σκληρός "hard") is the stiffening of a structure, usually caused by a replacement of the normal organ-specific tissue with connective tissue. Types include: *Amyotrophic lateral sclerosis, sometimes known as Lou Gehrig's disease, a progressive, incurable, usually fatal disease of motor neurons. *Atherosclerosis, a deposit of fatty materials, such as cholesterol, in the arteries which causes hardening. *Focal segmental glomerulosclerosis is a disease that attacks the kidney's filtering system (glomeruli) causing serious scarring and thus a cause of nephrotic syndrome in children and adolescents,〔(【引用サイトリンク】archiveurl=http://web.archive.org/web/20090602184312/http://www.nephcure.org/fsgs-facts.htm )〕 as well as an important cause of kidney failure in adults. *Hippocampal sclerosis, a brain damage often seen in individuals with temporal lobe epilepsy. *Lichen sclerosus, a disease that hardens the connective tissues of the vagina and the penis. An autoimmune disorder. *Liver sclerosis is a common misspelling of cirrhosis of the liver. *Multiple sclerosis, or focal sclerosis, is a central nervous system disease which affects coordination. *Osteosclerosis, a condition where the bone density is significantly increased. *Otosclerosis, a disease of the ears. *Systemic sclerosis (progressive systemic scleroderma), a rare, chronic disease which affects the skin, and in some cases also blood vessels and internal organs. *Tuberous sclerosis, a rare genetic disease which affects multiple systems. *Primary sclerosing cholangitis, a hardening of the bile duct by scarring and repeated inflammation. *Primary lateral sclerosis, progressive muscle weakness in the voluntary muscles. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sclerosis (medicine)」の詳細全文を読む スポンサード リンク
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