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Fig 5. White matter tracts affected by a tumor situated in the left basal nuclei evaluated by using preoperative (A and C) and postoperative (B and D) color maps for patient 2. The postoperative images show improvement in orientation and position of tracts situated in the immediate vicinity of the tumor, such as the cortico-spinal tract (yellow arrows), and more remote tracts, such as the genu of corpus callosum (white arrows) and fornix (light-green arrows). Structures that were compressed due to the tumor mass effect, including the left thalamus (orange arrows), improved in appearance postoperatively.
