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Fig 3. Axial diffusion tensor color maps demonstrating tract invasion.
A, Image of a 6-year-old patient with a diffusely infiltrating pontine tumor. The left corticospinal tract is enlarged, compared with the right, and tumor infiltration separates the corticospinal (anterior arrow) and corticobulbar (posterior arrow) components.
B, Image of an 8-year-old patient with a focally exophytic pontine tumor. Mild lateral expansion of the left corticospinal tract (medial arrow), with focally exophytic tumor (lateral arrow).
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