case_images: PMC11090548_01
case_images: (a-c) Initial head computed tomography reveals right convexity and interhemispheric acute subdural hematoma, (c) mass lesions in the left frontal lobes, and brain herniation.
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case_images: PMC11090548_01_SNI-15-115-g001.jpg
case_images: F1
case_images: Computed tomography (CT) revealed right convexity and interhemispheric acute subdural hematoma (ASDH), mass lesions in the left frontal lobes, and brain herniation [Figure 1].
case_images: (a) Contrast-enhanced computed tomography (CT) reveals vascular structures within the mass lesion. (b) CT angiography reveals no aneurysm or arteriovenous malformation, and (c) the venous phase reveals occlusion in the anterior portion of the superior sagittal sinus.
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case_images: PMC11090548_01_SNI-15-115-g002.jpg
case_images: F2
case_images: Contrast-enhanced CT revealed vascular structures within the mass lesion [Figure 2a]. CT angiography (CTA) revealed no aneurysm or arteriovenous malformation [Figure 2b], and the venous phase exhibited occlusion in the anterior portion of the superior sagittal sinus [Figure 2c].
case_images: (a) Hematoxylin and eosin stains revealing spindle-shaped tumor cell proliferated in fascicular or storiform pattern with collagenous stroma. (b) Immunostaining revealing tumor cells positive for epithelial membrane antigen.
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case_images: PMC11090548_01_SNI-15-115-g003.jpg
case_images: F3
case_images: The tumor tissue revealed no mitosis, nuclear atypia, and tumor necrosis [Figure 3a]. Furthermore, immunostaining revealed that the tumor cells were positive for epithelial membrane antigen [Figure 3b] and had a Ki-67 labeling index of <3%.
case_images: Postoperative computed tomography reveals removal of acute subdural hematoma.
case_images: SNI-15-115-g004.jpg
case_images: PMC11090548_01_SNI-15-115-g004.jpg
case_images: F4
case_images: Postoperative CT confirmed the successful removal of the right frontal tumor and ASDH [Figure 4].