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Donor procurement requires a combined endonasal and transcranial approach to decompress the orbital apex. (Above) First, endonasal resection of middle turbinate, maxillary enterostomy, total ethmoidectomy. and bilateral sphenoidotomy are performed. (Below) A small posterior septectomy, the lamina propecia, medial orbital floor, orbital apex, and bony optic canal are decompressed.
