Book excerpt: "The combined endoscopic endonasal, transethmoidal, transcribriform approach with endoscope-assisted supraorbital craniotomy is a minimally invasive approach that can be used as an alternative to the classic transcranial, transfacial, or combined craniofacial approaches to lesions of the anterior cranial fossa. This approach is best used for lesions that extend anteriorly to the frontal sinus, laterally beyond the lamina papyracea, and inferiorly into the ethmoid sinus. This chapter details the approach as well as closure of the combined endoscopic endonasal, transethmoidal, transcribriform approach with endoscope-assisted supraorbital craniotomy"--