caa a22 4500 606213902 CHVBK 20210128101049.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00701-015-2409-5 doi (NATIONALLICENCE)springer-10.1007/s00701-015-2409-5 Total removal of a trigeminal schwannoma via the expanded endoscopic endonasal approach. Technical note [Elektronische Daten] [Timothée Jacquesson, Moncef Berhouma, Thiébaud Picart, Emmanuel Jouanneau] Background: Because of their deep location surrounded by closed numerous neurovascular structures, skull base tumors of the cavernous sinus are still difficult to manage. Recently, the endoscopic endonasal approach commonly used for pituitary tumor resection has been "expanded” to the parasellar, infratemporal and orbital compartments with some advantages compared to the intracranial route. Methods: The authors reported the case of a 49-year-old male presenting a large extradural tumor of the left cavernous sinus with extensions toward the orbit, sphenoid sinus and infratemporal fossa. His ophthalmological examination was normal, and the body CT scan revealed no primary neoplasm. Results: In this operative video, the approach is described step by step with surgical nuances. The endoscopy provided a close-up panoramic view and various angles of vision. Also, it avoided an invasive craniotomy, cerebral retraction and cranial nerves damages. Thus, it allowed the total removal of this tumor originating from the maxillary branch of the trigeminal nerve. The pathologic examination confirmed a schwannoma. Conclusion: The expanded endoscopic endonasal approach provides an interesting corridor to cavernous sinus tumors with satisfactory control of extensions inferiorly toward the infratemporal fossa, anteriorly via the superior orbital fissure and medially within the sphenoid. Finally, the skull base surgeon has to master this anterior endoscopic route as well as all the other "open” transcranial skull base approaches to propose the best surgical route fitting the tumor characteristics. Springer-Verlag Wien, 2015 Skull base nationallicence Schwannoma nationallicence Cavernous sinus nationallicence Meckel's cave nationallicence Endoscopy nationallicence Endonasal nationallicence Jacquesson Timothée Multidisciplinary Skull Base Unit, Department of Neurosurgery B, Neurological Hospital Pierre Wertheimer, Hospices Civils de Lyon, 59 Bd Pinel, 69677, Lyon Cedex, France aut Berhouma Moncef Multidisciplinary Skull Base Unit, Department of Neurosurgery B, Neurological Hospital Pierre Wertheimer, Hospices Civils de Lyon, 59 Bd Pinel, 69677, Lyon Cedex, France aut Picart Thiébaud Multidisciplinary Skull Base Unit, Department of Neurosurgery B, Neurological Hospital Pierre Wertheimer, Hospices Civils de Lyon, 59 Bd Pinel, 69677, Lyon Cedex, France aut Jouanneau Emmanuel Multidisciplinary Skull Base Unit, Department of Neurosurgery B, Neurological Hospital Pierre Wertheimer, Hospices Civils de Lyon, 59 Bd Pinel, 69677, Lyon Cedex, France aut Acta Neurochirurgica Springer Vienna 157/6(2015-06-01), 935-938 0001-6268 157:6<935 2015 157 701 https://doi.org/10.1007/s00701-015-2409-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 brief-communication jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00701-015-2409-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jacquesson Timothée Multidisciplinary Skull Base Unit, Department of Neurosurgery B, Neurological Hospital Pierre Wertheimer, Hospices Civils de Lyon, 59 Bd Pinel, 69677, Lyon Cedex, France aut NATIONALLICENCE 700 1- Berhouma Moncef Multidisciplinary Skull Base Unit, Department of Neurosurgery B, Neurological Hospital Pierre Wertheimer, Hospices Civils de Lyon, 59 Bd Pinel, 69677, Lyon Cedex, France aut NATIONALLICENCE 700 1- Picart Thiébaud Multidisciplinary Skull Base Unit, Department of Neurosurgery B, Neurological Hospital Pierre Wertheimer, Hospices Civils de Lyon, 59 Bd Pinel, 69677, Lyon Cedex, France aut NATIONALLICENCE 700 1- Jouanneau Emmanuel Multidisciplinary Skull Base Unit, Department of Neurosurgery B, Neurological Hospital Pierre Wertheimer, Hospices Civils de Lyon, 59 Bd Pinel, 69677, Lyon Cedex, France aut NATIONALLICENCE 773 0- Acta Neurochirurgica Springer Vienna 157/6(2015-06-01), 935-938 0001-6268 157:6<935 2015 157 701