case_images: PMC10629337_01
case_images: Preoperation magnetic resonance imaging with nodular lesion with homogeneous contrast enhancement, attached to the falx cerebri at the right frontal lobe region.
case_images: SNI-14-380-g001.jpg
case_images: PMC10629337_01_SNI-14-380-g001.jpg
case_images: F1
case_images: The preoperative magnetic resonance imaging (MRI) showed a large nodular lesion with homogeneous enhancement attached to the falx cerebri at the right frontal lobe region, strongly suggesting a diagnosis of meningioma [Figure 1].
case_images: Simpson grade II resection.
case_images: SNI-14-380-g002.jpg
case_images: PMC10629337_01_SNI-14-380-g002.jpg
case_images: F2
case_images: Simpson grade II resection [Figure 2]. Subsequently, coagulation of the falx was performed approximately 2 cm anteriorly and posteriorly from the tumoral implant.
case_images: Simpson "grade zero" resection.
case_images: SNI-14-380-g003.jpg
case_images: PMC10629337_01_SNI-14-380-g003.jpg
case_images: F3
case_images: The removal of the falx was then performed, preserving the inferior sagittal sinus as well as the superior sagittal sinus, thus completing the total resection with safe margins from the dural implant, and allowing a grade zero resection [Figure 3].
case_images: Postoperative magnetic resonance imaging with total tumor resection. (a) Axial, (b) sagittal, (c,d) coronal and (e,f) preservation of the frontal association fascicules at the tractography sequence.
case_images: SNI-14-380-g004.jpg
case_images: PMC10629337_01_SNI-14-380-g004.jpg
case_images: F4
case_images: A postoperative MRI conducted 30 days after the procedure showed total resection of the tumor with vascular preservation and preservation of the right frontal association fascicules in the tractography sequence [Figure 4].
case_images: The cytogenetic study reviewed the abnormal cellular lineage, presenting the depletion of the short arm of chromosome 18 and the depletion of the long arm of chromosome 22.
case_images: SNI-14-380-g005.jpg
case_images: PMC10629337_01_SNI-14-380-g005.jpg
case_images: F5
case_images: The cytogenetic study reviewed abnormal cellular lineage, presenting the depletion of the short arm of chromosome 18 and the depletion of the long arm of chromosome 22 [Figure 5].