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. 2026 Jul 13;13:1851438. doi: 10.3389/fsurg.2026.1851438

Figure 4.

Medical illustration showing a sagittal section of the cranial base with panels A, B, and C. Panel A labels meninges and sellar anatomy, and depicts artificial dura mater, gelatin sponge, and porcine fibrin sealant. Panels B and C illustrate surgical steps using an instrument to manipulate and remove tissue from the sellar region.

Schematic diagram. (A) Schematic illustration of the triple-layer reconstruction strategy. (B) Standard EEA, showing CSF leakage originating from the arachnoid membrane of the diaphragma sellae. (C) Expanded EEA (trans-tuberculum approach), showing a large suprasellar dural defect where the simple triple-layer reconstruction would be insufficient.