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Insights into Imaging
Fig. 2 | Insights into Imaging

Fig. 2

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

Fig. 2

Lymphoma. Conventional MRI Findings: a, b Axial T2W and post-contrast T1W sequences show a large homogenously enhancing lesion in the left occipital lobe. c ADC map shows very low ADC (< 600 × 10−6 mm2 s−1) throughout the lesion. d PWI shows low perfusion throughout the lesion compared to normal-appearing contralateral white matter. e, f MRS shows very high Cho/Cr ratio (> 6, thick arrow) and very high lipid peaks in a non-necrotic appearing lesion (TE 30 ms and 135 ms, thin arrows). The low perfusion, very low ADC, very high lipid peak in a non-necrotic appearing lesion and high choline peak are characteristic of lymphoma. Histopathology confirmed a diffuse large B cell PCNSL

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