Accessory oval foramen |
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| Authors: | Jelena Krmpoti&#x -Nemani&#x , Ivan Vinter,Dubravko Jal&#x ovec |
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| Affiliation: | 1. Service de chirurgie orthopédique et de traumatologie, hôpital de Hautepierre, CHU de Strasbourg, 1, avenue Molière, 67098 Strasbourg, France;2. GMRC, service de santé publique, CHU de Strasbourg, 1, place de l’Hôpital, 67091 Strasbourg, France;3. Laboratoire Icube–CNRS - UMR 7357, Illkirch, France;1. Department of Anatomical Dissection and Donation, Medical University of Lodz, Poland;2. Department of Normal and Clinical Anatomy, Chair of Anatomy and Histology, Medical University of Lodz, Poland;3. Department of Neurosurgery, Tulane University School of Medicine, New Orleans, LA, USA;4. Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, USA;5. Department of Anatomical Sciences, St. George’s University, Grenada;6. Institute of Functional and Clinical Anatomy, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany;7. Sechenov University, Department of Topographic Anatomy and Operative Surgery, Moscow, Russia;8. Department of Human Anatomy and Embryology, Facultad de Medicina, Universidad Complutense de Madrid, Spain;1. Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, School of Medicine, University of Zagreb, Šalata 11, 10000 Zagreb, Croatia;2. Department of Pharmacology, School of Medicine, University of Zagreb, Croatia, Šalata 11, 10000 Zagreb, Croatia;3. Department of Paediatric and Preventive Dentistry, School of Dental Medicine, University of Zagreb, Croatia, Gundulićeva 5, 10000 Zagreb, Croatia;4. Department of Dental Medicine, University Hospital Center Zagreb, Croatia, , Kišpatićeva 12, 10000 Zagreb, Croatia;5. Department of Anthropology, Faculty of Social Sciences and Humanities, University of Zagreb, Lučićeva 3, 10000 Zagreb, Croatia;6. Department of Otorhinolaryngology and Maxillofacial Surgery, Faculty of Medicine, University of Osijek, Huttlerova 4, 31000 Osijek, Croatia;1. Department of Orthopedics and Traumatology, University Hospital Queen Giovanna – ISUL, Medical University of Sofia, Sofia, Bulgaria;2. Department of Anatomical Sciences, St. George’s University, Grenada;3. Department of Neurosurgery, Tulane University School of Medicine, New Orleans, LA, USA;4. Department of Neurology, Tulane University School of Medicine, New Orleans, LA, USA;5. Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, LA, USA;6. Department of Surgery, Tulane University School of Medicine, New Orleans, LA, USA;7. Department of Anatomical Dissection and Donation, Medical University of Lodz, Lodz, Poland;8. Department of Anatomy, Histology and Embryology, Medical University of Sofia, Sofia, Bulgaria;10. Department of General and Clinical Pathology, Trakia University, Faculty of Medicine, Stara Zagora, Bulgaria;11. Department of Cardiology, University Hospital ‘St. Ekaterina’, Medical University of Sofia, Bulgaria;12. University Hospital of Orthopedics ‘Prof. B. Boychev’, Medical University of Sofia, Sofia, Bulgaria;13. Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University, Sofia, Bulgaria;14. Twin Cities Orthopedics, Edina, MN, USA;1. LABANOF, Laboratorio Di Antropologia E Odontologia Forense, Sezione Di Medicina Legale, Dipartimento Di Scienze Biomediche per La Salute, Università Degli Studi Di Milano, Milan, Italy;2. Dipartimento Funzionale, Interaziendale di Medicina Legale, ASST Santi Paoli e Carlo, Milan, Italy |
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| Abstract: | We describe an opening with smooth walls in front and medial to foramen ovale which leads to an oblique canal directed towards the fossa pterygoidea. The canal was up to 2.3 mm long and opened near the root of the pterygoid process. We called this opening "foramen ovale accessorium", and found it in 48 of 124 anatomical specimens. The foramen was present in newborns and in those aged over 80 years old on one side but rarely on both sides of the sphenoid bone. Only in a single specimen were there two foramina side by side in front of the foramen ovale. In another case, the foramen ovale accessorium was present in the anterior wall of the canalis ovalis and pointed to the fossa pterygoidea. The localization and direction of the foramen ovale accessorium led us to the conclusion that it housed some of the separate rootlets for the chewing muscles, in this case for mm pterygoidei, mm tensor veli palatini and tensor tympani. The existence and contents of the foramen ovale accessorium is important in surgical interventions on the trigeminal nerve and/or ganglion Gasseri. |
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| Keywords: | Foramen ovale N. trigeminus Foramen ovale accessorium |
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