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The Solitary Enhancing Cerebral Lesion: Can FLAIR Aid the Differentiation between Glioma and Metastasis?

Y.M. Tanga, S. Ngaia and S. Stuckeya

a From the Department of Radiology, Princess Alexandra Hospital, Brisbane, Australia


Figure 1
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  		Fig 1. Solitary enhancing lesion in the left parietal lobe.

A and B, Axial FLAIR and T1 postgadolinium images. There is cortical FLAIR hyperintensity with both the enhancing and nonenhancing components of the lesion. The presence of nonenhancing cortical FLAIR hyperintensity (arrow) adjacent to the enhancement implies glioma. The histopathology was glioblastoma multiforme.


Figure 2
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  		Fig 2. Solitary enhancing lesion in the left posterior parietal lobe.

A and B, Axial FLAIR and T1 postgadolinium images. There is cortical FLAIR signal intensity abnormality related to this lesion, which enhances postgadolinium (arrow). There is no nonenhancing cortical FLAIR signal intensity abnormality to imply glioma. Histology showed this to be a metastasis.





Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X