PMC3281251_01
CT head. Scans pre (top) and post (bottom) administration of intravenous contrast demonstrate a soft-tissue density lesion measuring 2.2cm, the lateral border of which is confluent with the vault. There is extensive vasogenic oedema with some midline shift to the right side.
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A routine CT head scan was arranged (Figure 1).
MRI head. These FLAIR images (pre top and post-contrast below) show a dural based mass lesion causing significant mass effect in the left hemisphere. It has a lobulated contour and indents the adjacent cortex. There is extensive vasogenic oedema in the subcortical white matter and there is effacement of the left lateral ventricle. No other lesion was identified.
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An urgent MRI was arranged (Figure 2).
PAS stain of resected tissue showing typical features of secretory meningioma
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Histopathological examination of the operative specimen showed a secretory meningioma WHO grade 1 (Figure 3).