Figure 6.

Histological findings of endonasal glial heterotopia. A: Subepithelial neuroglial tissue (H&E 10×). B: Astrocytes and capillaries embedded in a loose fibrillary matrix (H&E 40×). C: Immunohistochemical detection of glial fibrillary acidic protein (GFAP 20×). D: Focal immunohistochemical detection of synaptophysin (20×).