PMC5632489_01
MRI findings of the mass on the tongue base. MRI shows a well-circumscribed mass measuring 25 x 23 x 27 mm in size in the midline region of the tongue base with a low signal intensity on T1-weighted images (a) and a high signal intensity on T2-weighted images (b).
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MRI showed a well-circumscribed mass measuring 25 x 23 x 27 mm in size in the same region with a low signal intensity on T1-weighted images (Figure 1(a)) and a high signal intensity on T2-weighted images (Figure 1(b)).
The histopathological findings of the mass. Hematoxylin and eosin (H&E) staining of the tissue specimen shows a subepithelial eosinophilic fibrous mass without a capsule (a). Immunostaining for GFAP (b) and S100 (c) was positive.
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fig2
Mature glial tissue characterized by spindle-shaped cells with eosinophilic cytoplasm and slight myxoid change without atypia were observed (Figure 2(a)). Immunohistochemical staining for glial fibrillary acid protein (GFAP) (Figure 2(b)) and S100 (Figure 2(c)) were diffusely positive for a spindle cell component.