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Figure 1
Axial T2-weighted image shows a predominantly cystic mass located in the fourth ventricle.
Figure 2
Axial susceptibility-weighted image shows no calcification or hemosiderin inside the mass.
Figure 3
Axial T1-weighted image with contrast agent reveals a giant ring-enhancing mass.
Figure 4
Axial diffusion-weighted image (left panel) and apparent diffusion coefficient (ADC) map (right panel) of the intraventricular lesion (region of interest (ROI) central) and normal-appearing parenchyma (ROI left).
Figure 5
Axial T1-perfusion image (upper left) and perfusion map (upper right) of the lesion (tumor) and normal-appearing parenchyma (reference). T1-perfusion parameters (lower left); and time–signal intensity curves for the tumor (blue) and the parenchyma (orange) (lower right).