PMC7241594_01
Pre-operative images. A) Axial T1 MRI revealed a large extra-axial meningioma within the anterior cranial fossa over the tuberculum sella with mass effect on optic chiasm and the prechiasmatic optic nerves. B) Sagittal T1 MRI revealed small extra-axial meningioma along right medial sphenoid wing.
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F1
Imaging revealed a large extra-axial mass with cystic degeneration centered within the anterior cranial fossa over the tuberculum sella extending to the level of the olfactory groove, measuring 4.5 cm x 4.0 cm x 2.5 cm in size, with mass effect compressing the optic chiasm and pre-chiasmatic optic nerves (Figure 1A). These findings were deemed most consistent with the presence of two intracranial meningiomas: a large tuberculum meningioma and a right medial sphenoid wing meningioma (Figure 1B).
Post-operative images. A) Humphrey visual fields reveal overall preserved peripheral vision in both eyes. B) Retinal nerve fiber layer thickness was preserved in both eyes. C) Ganglion cell layer was thinned in right eye compared with left eye.
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F2
Tests revealed intact peripheral visual fields and normal retinal nerve fiber layer thickness in both eyes (Figure 2A and 2B). There was, however, some residual thinning of the retinal ganglion cell layer of the right eye (Figure 2C).