A view of Liliequist ' s membrane through an endoscope - A case report

Liliequist's membrane is an important surgical landmark in various neurosurgical operations. The structure of the Liliequist’s membrane, as reported in the literature, varies considerably. Most of the anatomic studies of Liliequest’s membrane have been reported following removal of both the frontal lobes. This report presents the image of Liliequist’s membrane as viewed endoscopically from a retrosigmiod, posterior cranial fossa approach, in a formalin fixed cadaver. The images provided, define its anatomic features and boundaries, as well as its relationship with surrounding neurovascular structures.