PMC5379811_01
(a) CT scan brain plain showing predominantly left temporal cystic lesion; (b) T1WI MR axial section showing cystic lesion with minimal mass effect; (c) Post contrast T1WI sagital section showing the enhancing portion postero superiorly; (d) Post contrast T1WI coronal section
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F1
Magnetic resonance imaging (MRI) revealed an intra-axial lesion measuring approximately 5 x 5 cm2 with a predominantly hypo-intense center and a surrounding rim of iso-intense solid component on T1 weighted imaging and predominantly hyper-intense on T2 weighted imaging, showing peripheral enhancement on contrast administration in the left temporal region [Figure 1].
Post contrast T1WI - Post operative image showing near total excision
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F2
A left-sided fronto-parieto temporal craniotomy was done and the tumor was excised gross totally [Figure 2].
(a) H and E (x100) shows sheets of spindle cells with moderate pleomorphism in a fibrillary background; (b) Atypical mitotic figure; (c) IHC with GFAP (x100) shows diffuse positivity in tumor cells
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F3
Immunohistochemistry (IHC) was positive for glial fibrillary acidic protein (GFAP) and vimentin, and negative for synaptophysin [Figure 3].