case_images: PMC5586848_01
case_images: Case 1: DTI-based fiber-tracking displays a reduced and partially interrupted fiber tract (arrow) on the left CST.
case_images: mpp-0023-0174-g01.jpg
case_images: PMC5586848_01_mpp-0023-0174-g01.jpg
case_images: F1
case_images: DTI-based fiber-tracking displayed a reduced fiber tract on the left CST, and partially interrupted in the lesion area (fig. 1). Fiber bundles slightly increased but were still interrupted using an FA cut-off value of 0.10 for fiber-tracking. Diagnosis of diffuse astrocytoma was made after biopsy and histopathological results.
case_images: PMC5586848_02
case_images: Case 2: fiber-tracking displays interrupted fibers (arrow) distal to the right CST.
case_images: mpp-0023-0174-g02.jpg
case_images: PMC5586848_02_mpp-0023-0174-g02.jpg
case_images: F2
case_images: FA (0.08-0.22) compared to the contralateral whiter matter (0.40). Fibers displayed interruption distally to the right CST (fig. 2) and did not significantly improve using an FA cut-off value of 0.10 for fiber-tracking.
case_images: PMC5586848_03
case_images: Case 3. a DTI-based fiber-tracking displays a CST passing through the lesion (arrow) without interruption. b T2-weighted imaging shows lesions involving part of the precentral gyrus (arrowhead). MRS reveals a high choline concentration within the lesion.
case_images: mpp-0023-0174-g03.jpg
case_images: PMC5586848_03_mpp-0023-0174-g03.jpg
case_images: F3
case_images: DTI-based fiber-tracking displayed a right CST passing through the lesion without interruption (fig. 3).