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Insights into Imaging
Fig. 3 | Insights into Imaging

Fig. 3

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

Fig. 3

Low-grade glioma. Conventional MRI: (a) FLAIR, (b) T2W and (c) post-contrast T1W sequences show a diffuse abnormality in the left temporal lobe without contrast enhancement. d ADC map shows high ADC throughout the lesion (1300 × 10−6mm2s−1). e PWI shows low perfusion throughout the lesion (arrow) compared to normal-appearing white matter, and (f, g) MRS (TE 30 ms) shows slightly raised Cho/Cr ratio (1.0), slightly low NAA/Cr (1.1) and very high mI/Cr ratio (0.9, arrow). Lipid or lactate peaks are not significantly elevated. Multiparametric MRI appearances suggest no evidence of dedifferentiation. Stable appearances have been seen on follow-up imaging for over five years, confirming the lesion’s low-grade nature

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