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Intraretinal microvascular abnormalities : ウィキペディア英語版 | Intraretinal microvascular abnormalities
Intraretinal microvascular abnormalities (IRMA) are abnormalities of the blood vessels that supply the retina of the eye, a sign of diabetic retinopathy. IRMA can be difficult to distinguish from and is likely a precursor to retinal neovascularization. One way to distinguish IRMA from retinal neovascularization is to perform fluorescein angiography. Since IRMA blood vessels are patent, unlike neovascular vessels, they do not leak, and therefore exhibit hypofluorescence on fluorescein angiography. IRMA is deeper in the retina than neovascularization, has blurrier edges, is more of a burgandy color as opposed to a red color, does not appear on the optic disc, and is usually seen after a shorter period of poorly controlled diabetes than neovascularization.
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「Intraretinal microvascular abnormalities」の詳細全文を読む
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