PMC7749929_01
Pre- and postoperative magnetic resonance imaging of the first patient's recurrent left insular glioma, glioma resection, and temporal lobectomy. (a) Noncontrast, T1-weighted sagittal image highlights the patient's previous resection cavity. (b) Sagittal and (c) coronal MR images demonstrate the patient's postoperative resection cavity as well as resection of the left anterior temporal lobe. *Indicates the postoperative resection cavity in all panels.
SNI-11-433-g001.jpg
PMC7749929_01_SNI-11-433-g001.jpg
F1
A 26-year-old right-handed female with an anaplastic astrocytoma of the left insula presented with the right pronator drift [Figure 1]. Following surgery, postoperative imaging was obtained [Figure 1].
PMC7749929_02
Pre- and post-operative magnetic resonance imaging of the first patient's recurrent left insular glioma, glioma resection, and temporal lobectomy. (a) Non-contrast, T1-weighted sagittal image highlights the patient's previous resection cavity. (b) Sagittal and (c) coronal MR images demonstrate the patient's post-operative resection cavity as well as resection of the left anterior temporal lobe. ((*) indicates the post-operative resection cavity in all panels.)
SNI-11-433-g002.jpg
PMC7749929_02_SNI-11-433-g002.jpg
F2
A 64-year-old right-handed male with the left temporal GBM presented to neurosurgery with expressive aphasia [Figure 2]. Following surgery, postoperative imaging was obtained [Figure 2].
Pre- and post-operative magnetic resonance imaging of the second patient's left temporal glioblastoma and its resection cavity. (a) T2-weighted axial image demonstrates the patient's tumor (white arrow). (b) Axial and (c) coronal MR images demonstrate the patient's postoperative resection cavity consistent with a left anterior temporal lobectomy. ((*) indicates the post-operative resection cavity in all panels).
SNI-11-433-g003.jpg
PMC7749929_02_SNI-11-433-g003.jpg
F3
Navigator Version 3.0.48 (Localite TMS Navigator, Localite, Sankt Augustin, Germany) was initiated, and both the target and entry point were selected to allow guidance of the TMS coil and direction of the current [Figure 3]. aMT was found by stimulating the right M1 and causing a visible twitch in flexor digitorum interossei and abductor pollicis brevis. Notably, both patients had left-sided lesions; therefore, right M1, contralateral to the lesion, was stimulated to find aMT.