PMC9609948_01
Preoperative magnetic resonance image: (a) T2-weighted image (coronal section) demonstrates hyperintense mass localized in the sella and extending to the suprasellar area, compressing the third ventricle. (b) T1-weighted image (B: sagittal), a contrast-enhanced image of the brain showing homogenous enhancement of the lesion. (c) T1-weighted image (axial section), contrast-enhanced image showing homogenous enhancement of the mass.
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F1
Preoperative Magnetic Resonance Imaging (MRI) [Figure 1] revealed hyperintense mass (40*35*30) mm located in the sellar region and extending suprasellar with third ventricle, hypophysis, and optic chiasm compression and minimal lateral and third ventricles dilation.
One-year follow-up magnetic resonance image: (a) T1-weighted image (sagittal section), affirm successful tumorectomy and decompression of optic chiasm with normal ventricular volume. (b) T2-weighted image (axial section), confirm successful tumorectomy and decompression of optic chiasm with no dilatation of the ventricles.
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F2
She had gradual improvement of vision and endocrine function postoperatively and regained full vision within 1 year of follow-up [Figure 2].
(a) A histopathological image shows spindle cells with immunostaining that is positive staining for S-100 protein and negative for glial fibrillary acidic protein and epithelial membrane antigen. It is consistent with Schwannoma, the WHO Grade 1. (b) A histopathological image of Schwannoma with nuclear expression of Ki67 proliferation index was observed in approximately 2-3% of cells.
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F3
Histopathology manifested a schwannoma with positive staining for S-100 protein and negative for glial fibrillary acidic protein and human epithelial membrane antigen [Figure 3].