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FIG 3. Follow-up MR examination of 2-year-old girl.
A, An unenhanced axial T1-weighted (500/12/3) image shows a hypointense lesion anterior and superior to the pons with invasion of the mesencephalon (black arrows).
B, Axial T2-weighted (3000/120/1) image shows the mass is isointense with surrounding edema (white arrows) relative to the cerebral cortex.
C, Note the strong enhancement after gadolinium administration.
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