PMC9926822_01
Follow-up MRIs of patient no. 1. (A) Preoperative image - bilateral enhancement suggesting bGG (arrows); (B) Day 1 postoperative image; (C) MRI at three months postoperatively with a contrast-enhanced lesion on the corpus callosum (arrows); (D) MRI at 18 months postop with excellent response and evolution due to oncological treatment with no enhancement on the corpus callosum (arrows); (E) MRI at 24 months after resection surgery; and (F) MRI at 27 months after resection surgery.. bGG: Butterfly grade 4 glioma.
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FIG1
T1-weighted MRI revealed contrast-enhancing masses localized to the left and right frontal lobes, with a transcallosal connection between them visible on T2-weighted fluid-attenuated inversion recovery (FLAIR) images (Figure 1).
PMC9926822_02
Follow-up MRIs of patient no. 2. (A) Preoperative image; (B) Day 1 postoperative image with RTV of 3 cm3 (arrows); (C) Four months postoperative image after radiotherapy and first temozolomide course; (D) Twenty months postoperatively; (E) Progression seen at 25 months postoperatively (arrow) and a maximum diameter of bone flap drawn on the image (thick arrow); and (F) Extended progression at 32 months postoperatively (arrows).. RTV: Residual tumor volume.
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PMC9926822_02_cureus-0015-00000033787-i02.jpg
FIG2
MRI revealed a mass localized to the splenium of the corpus callosum with bilateral extensions into the cerebral hemispheres (Figure 2).
PMC9926822_03
Follow-up MRIs of patient no. 3. (A) Preoperative T1-enhanced MRI image; (B) Day 1 postoperative image with residual tumor volume of 10.27 cm3 (arrows).
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PMC9926822_03_cureus-0015-00000033787-i03.jpg
FIG3
MRI revealed a mass localized to the genu of the corpus callosum and bilateral extensions into the frontal lobes (Figure 3).