PMC6238327_01
Preoperative imaging of an illustrative case. Preoperative contrast-enhanced axial (a) and sagittal (b) MRI shows a 29-mm tumor in the right frontal and parietal lobes. 11C-methionine positron emission tomography shows high uptake (c), and DTI shows that the corticospinal tract is present in the front of and adjacent to the tumor itself (d). Digital subtraction angiogram shows tumor staining (e, arrow). Contrast-enhanced cone-beam CT shows that main feeding arteries (yellow arrowhead) from the right middle cerebral artery are located in the lateral part of the tumor, and draining veins (white arrowhead) are in the medial portion of the tumor (f)
SNI-9-220-g004.jpg
PMC6238327_01_SNI-9-220-g004.jpg
F3
After administration of contrast enhancement, the tumor showed ring enhancement [Figure 3a and b]. 11C-methionine positron emission tomography showed high uptake [Figure 3c], and DTI showed the presence of a corticospinal tract in the front of and adjacent to the tumor itself [Figure 3d]. A digital subtraction angiogram showed tumor staining through the right middle cerebral artery [Figure 3e]. T1 weighted image showed that the main feeding arteries were located in the lateral part of the tumor, and draining veins were in the medial portion of the tumor [Figure 3f and ].
Postoperative imaging of the illustrative case. Preoperative contrast-enhanced axial (a) and sagittal (b) MRI shows gross total resection. Three-dimensional volumetric analysis of restricted diffusion on DWI was performed (c)
SNI-9-220-g005.jpg
PMC6238327_01_SNI-9-220-g005.jpg
F4
Postoperative MRI showed GTR [Figure 4a and b], and the patient was neurologically intact with no morbidity. Three-dimensional volumetric analysis of restricted diffusion on DWI showed 6.03 cm3 [Figure 4c].