case_images: PMC11152539_01
case_images: Magnetic resonance imaging, performed during the patient's previous visit, showed (a) a T2 fluid-attenuated inversion recovery high homogeneous lesion with a 25 mm diameter in the left frontal lobe (pars triangularis), (b) The lesion was non-enhanced , suggesting a low-grade glioma.
case_images: SNI-15-167-g001.jpg
case_images: PMC11152539_01_SNI-15-167-g001.jpg
case_images: F1
case_images: Magnetic resonance imaging (MRI) revealed a non-enhanced, homogeneous lesion with a 25 mm diameter in the left frontal lobe (pars triangularis) [Figure 1].
case_images: Preoperative magnetic resonance imaging (MRI) showing (a) the tumor was confined to pars triangularis and pars opercularis , (b) Preoperative axial, (c)coronal , (d) sagittal and T2 MRI scan showing the posterior part was in contact with the central gyrus.
case_images: SNI-15-167-g002.jpg
case_images: PMC11152539_01_SNI-15-167-g002.jpg
case_images: F2
case_images: MRI indicated that the lesion was confined to the pars triangularis and pars opercularis and that the posterior part was in contact with the precentral gyrus [Figure 2].
case_images: (a) Intraoperative patient's position and (b) operative room setup.
case_images: SNI-15-167-g003.jpg
case_images: PMC11152539_01_SNI-15-167-g003.jpg
case_images: F3
case_images: Figure 3 illustrates the patient's position and the layout of the operating room.
case_images: Intraoperative pictures (a) before and (b) after tumor resection. The brain surface directly above the tumor, surrounded by "A," "B," "C," and "D" markers, was edematous and had a color different from that of the surrounding area. No speech arrest or motor deficit was observed with electrical stimulation to the tumor surface and premotor area ("1" marker).
case_images: SNI-15-167-g004.jpg
case_images: PMC11152539_01_SNI-15-167-g004.jpg
case_images: F4
case_images: No speech arrest, verbal comprehension difficulties, or motor deficits were observed with electrical stimulation of the cortical and subcortical areas where the tumor was located [Figure 4a]. Gross total tumor resection was achieved, and the patient exhibited no apparent complications [Figure 4b].
case_images: Postoperative magnetic resonance imaging showing total tumor removal. T2 fluid-attenuated inversion recovery high signal intensity area remained, which has been suggested as brain edema (arrow).
case_images: SNI-15-167-g005.jpg
case_images: PMC11152539_01_SNI-15-167-g005.jpg
case_images: F5
case_images: Postoperative MRI revealed no apparent residual tumors [Figure 5].