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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 2 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 2

From: The combined role of MR spectroscopy and perfusion imaging in preoperative differentiation between high- and low-grade gliomas

Fig. 2

A 26-year-old female presented by gradual behavior changes and right hemiparesis for 2 months. a Axial T2WI showing a large rather defined mass in left frontotemporal showing hyperintense signal, surrounded by mild vasogenic edema. b Axial T1 post Gd showing no enhancement. c Intermediate echo spectroscopy curve shows Cho/Cr ratio 1.5 and Cho/NAA ratio 1.8. d Perfusion-weighted images PWI and rCBV color perfusion map for the lesion and edema show a mild signal drop of the lesion and area of relative hyper-perfusion rCBV 1.5, also for edema rCBV 0.7. Collectively, the findings are in favor of LGG. Histopathological examination confirmed the diagnosis: diffuse astrocytoma WHO GRADE II

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