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Int Forum Allergy Rhinol


Title:New landmarks in endonasal surgery: from nasal bone to anterior cribriform plate including branches of anterior ethmoidal artery and nerve and terminal nerve
Author(s):Roussel LM; Patron V; Maubert E; Escalard C; Goux D; Beaudouin V; Lechapt E; Moreau S; Hitier M;
Address:"Department of Otolaryngology-Head and Neck Surgery, Centre Hospitalier Universitaire (CHU) de Caen, Caen, France. Institut National de la Sante et de la Recherche Medicale (INSERM) U 919 Serine Proteases et Physiopathologie de l'Unite neurovasculaire, Cyceron Universite de Caen (UNICAEN), Caen, France. Department of Radiology, Centre Hospitalier Universitaire (CHU) de Caen, Caen, France. Centre de Microscopie Appliquee a la Biologie, Universite de Caen (UNICAEN), Caen, France. Unite Mixte de Recherche (UMR) U 6301 Imagerie et Strategies Therapeutiques des pathologies Cerebrales et Tumorales, Cyceron, Universite de Caen (UNICAEN), Caen, France. Department of Anatomopathology, Centre Hospitalier Universitaire (CHU) de Caen, Caen, France. Department of Anatomy, Universite de Caen (UNICAEN), Caen, France. INSERM U 1075 COMETE, Caen, France"
Journal Title:Int Forum Allergy Rhinol
Year:2020
Volume:20191113
Issue:3
Page Number:395 - 404
DOI: 10.1002/alr.22480
ISSN/ISBN:2042-6984 (Electronic) 2042-6976 (Linking)
Abstract:"BACKGROUND: Despite the development of anterior skull base surgery, the anatomy of the nasal bone and anterior cribriform plate remains unclear. A recent study confirmed 2 distinct foramina in the anterior part of cribriform plate: the ethmoidal slit (ES) and the cribroethmoidal foramen (CF). The aim of this study was to specify their content, their anatomic relationship to the frontal sinus and skull base, and their potential value in skull base surgery. METHODS: Dissections were performed on 36 cadaver heads. Macro- and microscopic examinations were carried out. Microcomputed tomography scans contrasted with osmium were performed to identify vessels and nerves. Histology with neural, meningeal, or luteinizing hormone-releasing hormone immunomarkers was performed on the content of the foramina. Finally, endonasal surgical dissections were carried out. RESULTS: The ES and the CF were observed in all cases. They measured a mean of 4.2 and 1.6 mm, respectively. The ES contained dura mater, arachnoid tissues, lymphatics, and the terminal nerve. The CF contained the anterior ethmoidal nerve and artery. This foramen continued forward with the cribroethmoidal groove, which measured a mean of 2.5 mm. This groove was under the frontal sinus and in front of the skull base. We also described a 'cribroethmoidal canal' and a 'nasal bone foramen.' CONCLUSION: The clinical applications of this new anatomic description concern both cribriform plate and frontal sinus surgeries. Identifying the terminal nerve passing through the ES is a step forward in understanding pheromone recognition in humans"
Keywords:Aged Cadaver Dissection Ethmoid Bone/*blood supply/diagnostic imaging/*innervation Female Humans Male Nasal Bone/*anatomy & histology/diagnostic imaging Natural Orifice Endoscopic Surgery Ophthalmic Artery Ophthalmic Nerve Skull Base/anatomy & histology/d;
Notes:"MedlineRoussel, Lise-Marie Patron, Vincent Maubert, Eric Escalard, Clement Goux, Didier Beaudouin, Vincent Lechapt, Emmanuele Moreau, Sylvain Hitier, Martin eng 2019/11/14 Int Forum Allergy Rhinol. 2020 Mar; 10(3):395-404. doi: 10.1002/alr.22480. Epub 2019 Nov 13"

 
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