Fig 4.

A 55-year-old man (case 4) presented to the hospital with a Jacksonian seizure starting in his right fingers. On MR imaging, a large left frontal lobe tumor was depicted. Of note, the multitensor technique is able to depict fibers from various locations and is able to reveal the relationship between the vital fiber tracts and the dorsal edge of the tumor. On the transaxial view, note that single-tensor tractography is able to show that the trunk fibers (purple) are located within the tumor. Using the multitensor approach, one can see that the hand fibers (green) are involved. Facial fibers (blue) are also seen in close proximity to the tumor.