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Fig. 5 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 5

From: The value of adding DWI and FLAIR signal changes in the resection cavity on the diagnostic performance of BT-RADS category 3 for tumor progression prediction in post-treated glioma patients: a prospective pilot study

Fig. 5

A 47-year-old clinically-deteriorated male patient with left temporo-parietal grade IV glioblastoma multiforme finished chemoradiotherapy 9 months ago. a and b Axial FLAIR images of the first and second studies, respectively show an increase of the FLAIR component by less than 25%. Increase mass effect on the second follow-up study. c and d Axial post-contrast T1 WIs of the first and second studies, respectively show an increase in the enhancing component by less than 25% in the follow-up study. e and f Axial DWI and (g and h) Axial ADC maps show a decrease of ADCmean in the heterogeneously enhancing component (0.99 × 10−3mm2/s) and (0.75 × 10−3mm2/s) in the first and second studies, respectively. BT-RADS category 3c was given that favors tumor progression. Decrease ADCmean ascertains the possibility of tumor recurrence. Tumor progression was proved in the second stage follow-up study

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