CRANIAL REGION | Superior sagittal sinus |
HISTOPATHOLOGY | Meningothelial meningioma, WHO grade 1 |
PRIOR SURGICAL RESECTION | Yes |
PERTINENT LABORATORY FINDINGS | N/A |
Case description
A 45-year-old female presented with a headache, slurred speech, and difficulty understanding speech. A subsequent magnetic resonance imaging (MRI) scan revealed a right parasagittal meningioma with skull invasion and extension into the superior sagittal sinus (SSS). She underwent subtotal resection ( Figure 12.59.1 ), followed by Gamma Knife radiosurgery (GKRS) ( Figure 12.59.2 ). Histopathology confirmed the diagnosis of a WHO grade 1 meningioma. After GRKS, the patient was maintained on Trileptal (300 mg TID) to control persistent seizures.
Radiosurgery Machine | Gamma Knife – Model C |
Radiosurgery Dose (Gy) | 13, at the 50% isodose line |
Number of Fractions | 1 |
![](https://radiologykey.com/wp-content/uploads/2024/04/f59-01-9780323874373.jpg)
Axial, coronal, and sagittal postcontrast T1-weighted images showing a parasagittal meningioma (30 cc volume) invading the superior sagittal sinus bilaterally. The patient underwent a craniotomy for subtotal resection and cranioplasty using a mesh, and histopathology confirmed a diagnosis of WHO grade 1 meningioma.
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