Fig. 1

The surgical strategy of corpus callosum glioblastomas in Nanfang Neurosurgery. A Diagrammatical representation of the strategy and the techniques in resection of corpus callosum glioblastomas (ccGBMs) in a sagittal view. The tumor is removed by the en-bloc technique. The lobar part of ccGBM was dissected according to FLAIR images, and we used membranous structures including the pia mater and ependyma, as the surgical margins. The cortical cutting edge was the anatomically adjacent sulcus next to the gyri, which presented an abnormal signal on FLAIR images. In addition, we highlight the removal of the ventricle wall in ccGBMs. The red mass represents the enhanced tumor, and the light blue region around the enhanced tumor represents the FLAIR region. The green curve represents the excisional range. The small red circles represent the arteries, and the small blue circles represent the veins. The schematic diagram was drawn by Tianshi Que. B-C Typical cases. A middle-aged female with IDH1 wild-type ccGBM, in which the tumor was located in the anterior of the corpus callosum and was mainly related to the left frontal lobe, underwent supramaximal resection with wide ventricle wall resection by the en-bloc technique (B). A middle-aged male with an astrocytoma, WHO grade 4, IDH mutation, which is in the body of the corpus callosum and was mainly related to the right frontal lobe (C). A young female with IDH1 wild-type ccGBM in the posterior corpus callosum underwent supramaximal resection with removal of the relatively right occipital lobe (D)