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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Fibrinoid necrosis ： ウィキペディア英語版 Fibrinoid necrosis Fibrinoid necrosis is a form of necrosis, or tissue death, in which there is accumulation of amorphous, basic, proteinaceous material in the tissue matrix with a staining pattern reminiscent of fibrin. It is associated with conditions such as immune vasculitis (e.g. Polyarteritis nodosa), malignant hypertension, preeclampsia, or hyperacute transplant rejection. In small vessel vasculitis, fibrin plugs frequently occur in the vessel lumen, but the term fibrinoid is usually used to refer to material outside the lumen of a vessel.〔Kumar, V., Abbas, A.K., and Fausto, N. "Robbins and Cotran Pathologic Basis of Disease" (2005). 7th ed. p. 214.〕 Fibrinoid necrosis also occurs in the walls of arterioles in malignant hypertension (blood pressure greater than 200/130 mmHg).〔Kumar, V. et al. Ibid., at p. 1007.〕 Fibrinoid necrosis is a special form of necrosis usually seen in immune reactions involving blood vessels, known as Type III hypersensitivity reactions. This pattern of necrosis typically occurs when complexes of antigens and antibodies are deposited in the walls of arteries. Deposits of these immune complexes, together with fibrin that has leaked out of vessels, result in a bright pink and amorphous appearance in H&E stains, called “fibrinoid” (fibrin-like) by pathologists. Ultimately, in the living patient most necrotic cells and their contents disappear by phagocytosis of the debris and enzymatic digestion by leukocytes. If necrotic cells and cellular debris are not promptly destroyed and reabsorbed, they tend to attract calcium salts and other minerals and to become calcified.〔"pathologic basis of disease", Robbins and Coltran 8th edition, page 41.〕 ==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「Fibrinoid necrosis」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.