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Insights into Imaging
Fig. 17 | Insights into Imaging

Fig. 17

From: Multiparametric MRI: practical approach and pictorial review of a useful tool in the evaluation of brain tumours and tumour-like lesions

Fig. 17

Epidermoid-like lesion of the corpus callosum. Conventional MRI: a, b, e T2W, FLAIR and post-contrast T1W sequences show a lesion involving the splenium of the corpus callosum and right parietal lobe. Multiparametric MRI: c, d DWI and ADC images show restricted diffusion (arrow). f Very low perfusion on PWI (arrow). g MRS shows very high lipid (1.3 ppm, arrow), without an increase in choline. In this case, appearances are not typical for high-grade glioma as there is low perfusion and no significant increase in choline, and it is not typical for lymphoma as there is no contrast enhancement or raised choline. Biopsy was consistent with epidermoid-like lesion with no evidence of tumour

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