Abstract
Purpose
To describe the ontogeny of vertical semicircular canals using computed tomography.
Materials and methods
We have studied 39 human fetuses aged between 17 and 38 weeks of development through multi-helicoidal CT.
Results
The first signs of ossification in the semicircular canals, superior and posterior, are from 19 weeks of development, through two primary ossification centers in each canal, which will take part in the formation of the outer cover oriented towards the middle and posterior brain fossae, respectively. In this process it must be added the intervention of the common branch. Internal bone covers are formed by ossification of the fossa subarcuata in the superior semicircular canal, and from the compact center of the labyrinthine capsule into the posterior canal. The tomographic study has allowed us to demonstrate how ossification follows a variable rate, establishing a period between 21 and 26 weeks where there are completely closed canals with others still open to the brain fossae.
Conclusions
The tomographic study of the semicircular canals has enabled us to establish a critical period in its ossification that could explain the etiology of the congenital-type dehiscence.
Similar content being viewed by others
References
Anson BJ, Davies J (1982) Embriología del oído. En: otorrinolaringología. Paparella-Shumrick. ed. Médica Panamericana, Buenos aires
Anson BJ. (1988) Anatomía y embriología. En: enfermedades de la nariz, garganta, oído, cabeza y cuello. Ballenger JJ, Ed. Salvat
Bach-Peterson S, Kjaer I (1993) Ossification of lateral components in the prenatal cranial base. J Craniofac Genet Dev Biol 13:76–82
Bergeron RT (1991) Introduction to the temporal bone. En: Head and neck imaging. Som PM, Bergeron RT. Ed Mosby, pp 927–934
Carey JP, Minor LB, Nager GT (2000) Dehiscence or thinning of bone overlying the superior semicircular canal in a temporal bone survey. Arch Otolaryngol Head Neck Surg 126:137–147. https://doi.org/10.1001/archotol.126.2.137
Dzieciolowska-Baran E (2007) Development of the osseous structures of internal ear in human foetuses. Ann Acad Med Stetin 53(3):10–19
Jeffery N, Spoor F (2004) Prenatal growth and development of the modern human labyrinth. J Anat 204(2):71–92. https://doi.org/10.1111/j.1469-7580.2004.00250.x
Nemzek WR, Brodie HA, Chong BW, Babcook CJ, Hecht ST, Salamat S, Ellis WG, Seibert JA (1996) Imaging findings of the developing temporal bone in fetal specimens. Am J Neuroradiol 17:1467–1477
Olaizola F, Horna J (1982) Embriología del oído. Acta Otolaringol Esp 33:11–29
Porowski L, Radziemski A, Piotrowski A, Skórzewska A, Wozniak W (2003) The fetal development of the human osseus labyrinth in a computed tomographic study. Folia Morphol 62(3):281–283
Richard C, Laroche N, Malaval L, Dumollard JM, Martin CH, Peoch M, Vico L, Prades JM (2010) New insight into the bony labyrinth: a microcomputed tomography study. Auris Nasus Larynx 37(2):155–161. https://doi.org/10.1016/j.anl.2009.04.014
Richard C, Courbon G, Laroche N, Prades JM, Vico L, Malaval L (2017) Inner ear ossification and mineralization kinetics in human embryonic development-microtomographic and histomorphological study. Sci Rep 7:4825. https://doi.org/10.1038/s41598-017-05151-0
Smith-Agreda V, Ferres Torres EY, Montesinos Castro–Girona M (1985) Atlas-tratado de anatomía del sistema nervioso con introducción a la clínica y EEG. Ed Gregori, Valencia
Whyte J, Cisneros A, Martínez C, Gracia-Tello B, Whyte A, Crovetto R, Crovetto MA (2013) Congenital dehiscence in the posterior semicircular canal. Otol Neurotol 34(6):1134–1137. https://doi.org/10.1016/j.otorri.2015.09.006
Yus C, Cisneros A, Obón J, Crovetto R, Fraile J, Crovetto MA y Whyte J (2014) Peculiaridades en el desarrollo del canal semicircular superior. Acta Otorrinolaringol Esp 65:237–241. https://doi.org/10.1016/j.otoeng.2016.07.001
Author information
Authors and Affiliations
Contributions
Protocol/project development: AC, JW. Data collection: MH. Data analysis: AC, JW, JO. Manuscript writing/editing: AC, JW.
Corresponding author
Ethics declarations
Conflict of interest
This paper has not been published before and is not under simultaneous consideration by any other publication. All authors are in agreement with the content of the manuscript.
Rights and permissions
About this article
Cite this article
Cisneros, A.I., Herreros, M., Obón, J. et al. Development of ossification in the vertical semicircular canals: tomographic study. Surg Radiol Anat 40, 1093–1098 (2018). https://doi.org/10.1007/s00276-018-2053-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00276-018-2053-x