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Multiplanar sequences. Large left frontal convexity extra-axial dural based tumour measuring 4.8 x 4.2 x 3.4 cm in size associated with dural reaction along the anterior 50% of the cerebral convexity. Small cerebral invasion. This demonstrates prominence surface vessels and strong enhancement with no area of necrosis identified. There is considerable mass-effect on the underlying brain with the adjacent frontal gyrus appearing thickened, likely due to mass effect rather than a primary gyral abnormality. There is minor midline shift, moderately extensive white matter disease, likely of ischaemic nature. Old superior right cerebellar infarct. No acute haemorrhage detected. This lesion appears solitary.
No skull marrow lesion seen.
Large left frontal lobe convexity lesion likely to be a meningioma, less likely a haemangiopericytoma or dural metastasis.