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False and true accessory infraorbital foramina, and the infraorbital lamina cribriformis.
- Source :
-
Morphologie : bulletin de l'Association des anatomistes [Morphologie] 2020 Mar; Vol. 104 (344), pp. 51-58. Date of Electronic Publication: 2020 Jan 07. - Publication Year :
- 2020
-
Abstract
- The infraorbital nerve (ION) and artery (IOA) course in the infraorbital canal (IOC) to exit through the infraorbital foramen (IOF). Few previous studies brought evidence of accessory IOF. Evaluation of the IOF in Cone Beam Computed Tomography (CBCT) is more accurate to determine whether or not foramina of maxilla are supplied by canaliculi deriving from the IOC. We performed a retrospective anatomical study of the CBCT files of 200 patients. An accessory infraorbital foramen located inferior to the infraorbital margin (AIOF) was found in 18/200 right maxillae and in 13/200 left ones. Canaliculi deriving from the IOC supplied accessory foramina in the sutura notha- AIOF(SN) - in 15 maxillae. Noteworthy, the AIOF(SN)-negative maxillae displayed the SN and the vascular foramina of Macalister. In 94% of cases the AIOF were unique. A single maxilla (3%) had a double AIOF. In a different case (3%) were found three accessory infraorbital foraminules transforming the anterior wall of the antrum into a veritable lamina cribriformis infraorbitalis. A single prior study distinguished AIOF from AIOF(SN), while most of different other ones were performed on dry bones. Therefore, the reports of prevalence for the number and location of AIOF should be regarded with caution. Foramina of the SN could equally get intraosseous and extraosseous supply, this distinction being accurately made in CBCT.<br /> (Copyright © 2019 Elsevier Masson SAS. All rights reserved.)
- Subjects :
- Cadaver
Carotid Artery, External anatomy & histology
Carotid Artery, External diagnostic imaging
Computed Tomography Angiography
Cone-Beam Computed Tomography
Female
Humans
Imaging, Three-Dimensional
Male
Maxilla diagnostic imaging
Maxillary Nerve anatomy & histology
Maxillary Nerve diagnostic imaging
Orbit diagnostic imaging
Retrospective Studies
Anatomic Variation
Maxilla anatomy & histology
Orbit anatomy & histology
Subjects
Details
- Language :
- English
- ISSN :
- 1286-0115
- Volume :
- 104
- Issue :
- 344
- Database :
- MEDLINE
- Journal :
- Morphologie : bulletin de l'Association des anatomistes
- Publication Type :
- Academic Journal
- Accession number :
- 31924470
- Full Text :
- https://doi.org/10.1016/j.morpho.2019.12.003