Headache and firm scalp swelling
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Large left frontal extra axial space occupying lesion compressing the underlying brain resulting in subfalcine herniation and extending through the left frontal and parietal bones to the scalp (local invasion). The mass shows intense enhancement after contrast with typical dural tail sign.
Diagnosis: Malignant meningioma with local invasion WHO grade III (Histopathology proved anaplastic type)
Atypical and malignant meningomas are associated with local invasion and brain edema. Differential consideration include meningeal metastasis, meningosarcoma and skull osteosarcoma.