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Figure 2: MRI of the brain in the (a) FLAIR sequence showing a hypointense midline posterior fossa lesion with irregular margins and a bright hyperintense surrounding area, which extends to the right CP angle; (b) T1 weighted sequence showing a hyperintense centre and a mixed iso- - to hypointense surrounding; (c) Contrast T1 weighted sequence showing no significant enhancement at the centre of the lesion with minimal contrast enhancement at the periphery

Figure 2: MRI of the brain in the (a) FLAIR sequence showing a hypointense midline posterior fossa lesion with irregular margins and a bright hyperintense surrounding area, which extends to the right CP angle; (b) T1 weighted sequence showing a hyperintense centre and a mixed iso- - to hypointense surrounding; (c) Contrast T1 weighted sequence showing no significant enhancement at the centre of the lesion with minimal contrast enhancement at the periphery