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Magn Reson Imaging. 1996;14(9):1113-6.

Discrimination of brain abscess from necrotic or cystic tumors by diffusion-weighted echo planar imaging.

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Department of Neurosurgery, Meiji College of Oriental Medicine, Kyoto, Japan.


Diagnostic difficulties in discriminating brain abscess from necrotic or cystic tumors using conventional CT and MRI have been reported. In this article, we examine the diagnostic ability of diffusion-weighted imaging to discriminate brain abscess from necrotic or cystic tumors. In previous reports, necrotic or cystic tumors show low signal intensity in diffusion-weighted imaging, indicating a high apparent diffusion coefficient (ADC). In contrast, in our study, high signal intensity was observed in the abscess fluid, associated with low ADC.

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