title: [Contralateral approach to clivus tumors using the transmaxillary-transethmoid approach].
abstract: A modified transmaxillary transethmoid approach to the clivus is described. A paranasal incision is performed on the side contralateral to the major tumor extension. The approach provides preservation of the lacrimal duct, and the bony structures of the pyriform aperture. By removing the frontal process of the maxilla and if necessary the medical orbital wall, a wide access is created that can be further enlarged by dissecting the medial concha, ethmoid sinus and posterior parts of the nasal septum. Cerebrospinal fluid leakage is treated by a special technique.
authors.affiliation: HNO-Klinik (Chefarzt: Dr. L. Osterwald), Krankenhaus Nordstadt, Hannover.
authors.forename: L
authors.initials: L
authors.lastname: Osterwald
authors.forename: M
authors.initials: M
authors.lastname: Samii
authors.forename: M
authors.initials: M
authors.lastname: Tatagiba
authors.forename: A
authors.initials: A
authors.lastname: Ohlemutz
mesh_terms: D000293:Adolescent; D000328:Adult; D002559:Cerebrospinal Fluid Rhinorrhea / Q000175:diagnosis / Q000601:surgery; D005005:Ethmoid Sinus / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008444:Maxillary Sinus Neoplasms / Q000175:diagnosis / Q000601:surgery*; D008875:Middle Aged; D009669:Nose Neoplasms / Q000175:diagnosis / Q000601:surgery*; D009915:Orbit / Q000473:pathology / Q000601:surgery; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis / Q000601:surgery*; D011183:Postoperative Complications / Q000175:diagnosis / Q000601:surgery; D012086:Reoperation; D012888:Skull Neoplasms / Q000175:diagnosis / Q000601:surgery*; D014057:Tomography, X-Ray Computed
vernacular_title: Kontralateraler Zugang zu Clivustumoren unter Verwendung des transmaxillär-transethmoidalen Weges.