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Images from patient 8 who presented with word-finding difficulties. Axial (A) and coronal (B) T2-weighted images show a lesion involving the left frontal lobe, the left insula, the left external capsule and the anterior left temporal lobe. We highlight the frontal part of AF (circled). (C) Single-tensor streamline tractography tracks a small fiber bundle posterior to the tumor. (D) Two-tensor UKF tractography tracks the AF through the edematous area, adjacent to the tumor.
