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Ring-enhancing lesion : ウィキペディア英語版 | Ring-enhancing lesion
A ring-enhancing lesion is an abnormal radiologic sign on MRI or CT scans obtained using radiocontrast. On the image, there is an area of decreased density (see radiodensity) surrounded by a bright rim from concentration of the enhancing contrast dye. This can be a finding in numerous disease states. In the brain, it can occur with an early brain abscess as well as in ''Nocardia'' infections associated with lung cavitary lesions. In patients with HIV, the major differential is between CNS lymphoma and CNS toxoplasmosis. ==External links==
*( Ring Enhancement: The Free Medical Dictionary )
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「Ring-enhancing lesion」の詳細全文を読む
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