case_images: PMC11101244_01
case_images: (a) Initial CT scan showing acute traumatic changes. (b) The postoperative CT revealed a subacute ischaemic lesion on the left operculum (black circle) and residual post-traumatic and postoperative changes. On the T2-weighted MR images (3T Magnetom Vida, Siemens, Erlangen, Germany), (c) hyperintense lesions in both opercula (white circles) are detected which are due to parenchymal defect caused by contusion on the right side and due to an ischaemic event on the left side, as clearly seen in the (d) diffusion-weighted images (DWI).
case_images: CRICC2024-6652867.001.jpg
case_images: PMC11101244_01_CRICC2024-6652867.001.jpg
case_images: fig1
case_images: He was subsequently intubated in order to aid computed tomography (CT) imaging, which showed Marshall grade II traumatic brain injury with a right-sided subdural haematoma and bilateral subarachnoid bleeding as well as a secondary right-sided parietal parenchymal haemorrhage (Figure 1(a)) with a subsequent midline shift to the left and tonsillar herniation. Magnetic resonance imaging showed focal T2w hyperintensities in both opercula due to parenchymal damage caused from traumatic contusion on the right side and from an ischaemic event of undetermined cause on the left side with hyperintense signals in the diffusion-weighted imaging (DWI) with corresponding hypointense values in the apparent diffusion coefficient (ADC) (Figures 1(c) and 1(d)).