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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 5 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 5

From: Arterial spin-labeled magnetic resonance perfusion imaging in prediction of pediatric brain tumors grading: inter-observer agreement

Fig. 5

A 15-year-old girl patient with WHO grade 4 medulloblastoma. Images show a fourth ventricular mass of non-homogenous signal intensity (asterisk) displaying low SI with hemorrhagic foci of high SI on axial T1WI (A) with heterogeneous enhancement on post contrast axial T1WI (B). Its origin from the roof of fourth ventricle can be demonstrated in sagittal T2WI (C). It shows restricted diffusion in the form of high SI on DWI (b1000 image) and low SI on axial ADC grayscale map (D, E). There is mixed perfusion of the lesion (white arrows) on Axial ASL grayscale and color CBF maps (F, G)

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