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Surgical and Radiologic Anatomy
Published in: Surgical and Radiologic Anatomy 6/2015

Open Access 01-08-2015 | Anatomic Bases of Medical, Radiological and Surgical Techniques

The morphology and morphometry of the fetal fallopian canal: a microtomographic study

Authors: Tymon Skadorwa, Mateusz Maślanka, Bogdan Ciszek

Published in: Surgical and Radiologic Anatomy | Issue 6/2015

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Abstract

Background

The canal for facial nerve (the fallopian canal, FC) is a bony structure passing through the petrous part of the temporal bone. The anatomy of this demanding and important for oto- and neurosurgeons structure is well described in literature. Among several studies on radiological anatomy of this region, still little papers focus on the developmental measurements in prenatal period.

Aim

Assessment of a microtomographic appearance of FC and dimensions based on available landmarks.

Method

The study was performed on 22 fetal temporal bones aged 16–27 Hbd. Specimens were scanned in micro-CT scanner. Length (FC1, FC2) and width (FC1W, FC2W) of the labyrinthine and tympanic portions of FC, angle of the first curve of FC (A1-2), length of the internal acoustic meatus (IAM), distance from FC to the basal cochlear turn (BCT) and to the lateral semicircular canal (LSC) were measured.

Results

The paper discusses problems and a value of micro-CT in neuroanatomical studies. FC was found in 20/22 cases. Average value of all distances measured was: FC1 1.38 ± 0.35 mm; FC2 6.68 ± 1.34 mm; FC1W 1.07 ± 0.1 mm; FC2W 1.25 ± 0.13 mm; A1-2 87.24 ± 4.05°; IAM 4.89 ± 0.60 mm; BCT 0.35 ± 0.05 mm; LSC 0.55 ± 0.05 mm.

Conclusions

Labyrinthine portion starts to ossify between 16th and 18th weeks of gestation and tympanic portion is fully ossified only after 20th week. Labyrinthine and tympanic portion of FC and the IAM elongate with age, whereas the angle of the first curve of FC and the distances to the BCT and the LSC remain stable and present no correlation with age.
Literature
1.
Altuntas A, Unal A, Aslan A, Ozcan M, Kurkcuoglu S, Nalca Y (1998) Facial nerve paralysis in chronic suppurative otitis media: Ankara Numune Hospital experience. Auris Nasus Larynx 25(2):169–172PubMedCrossRef
2.
Anson BJ, Bast TH (1953) The development of the otic capsule in region of the cochlear fenestra. Ann Otol Rhinol Laryngol 62:1083–1116PubMedCrossRef
3.
Anson BJ, Harper DG, Warpeha RL (1963) Surgical anatomy of the facial canal and facial nerve. Ann Otol Rhinol Laryngol 72:713–734PubMedCrossRef
4.
Aslan A, Goktan C, Okumus M, Tarhan S, Unlu H (2001) Morphometric analysis of anatomical relationships of the facial nerve for mastoid surgery. J Laryngol Otol 115:447–449PubMedCrossRef
5.
Barnes G, Liang JN, Michaels L, Wright A, Hall S, Gleeson M (2001) Development of the fallopian canal in humans: a morphologic and radiologic study. Otol Neurotol 22:931–937PubMedCrossRef
6.
Bast TH, Anson BJ, Richany SF (1956) The development of the second branchial arch (Reichert’s cartilage), facial canal and associated structures in man. Q Bull Northwest Univ Med Sch 30:235–249PubMedCentralPubMed
7.
Bento RF, Salomone R, Brito R, Tsuji RK, Hausen M (2008) Partial lesions of the intratemporal segment of the facial nerve: graft versus partial reconstruction. Ann Otol Rhinol Laryngol 117:665–669PubMedCrossRef
8.
Chen CN, Chen YS, Yeh TH, Hsu CJ, Tseng FY (2010) Outcomes of malignant external otitis: survival vs mortality. Acta Otolaryngol 130(1):89–94PubMedCrossRef
9.
Di Martino E, Sellhaus B, Haensel J, Schlegel JG, Westhofen M, Prescher A (2005) Fallopian canal dehiscences: a survey of clinical and anatomical findings. Eur Arch Otorhinolaryngol 262:120–126PubMedCrossRef
10.
Djeric D, Savic D (1990) Otogenic facial paralysis. A histopathological study. Eur Arch Otorhinolaryngol 247:143–146PubMedCrossRef
11.
Falloppio G (1561) Observationes anatomicae. Venice
12.
Fazekas IG, Kósa F (1978) Forensic Fetal Osteology. Akademiai Kiadó, Budapest
13.
14.
Green JD, Shelton C, Brackmann DE (1994) Iatrogenic facial nerve injury during otologic surgery. Laryngoscope 104:922–926PubMed
15.
Guild SR (1949) Natural absences of part of the bony wall of the facial canal. Laryngoscope 59:668–673PubMedCrossRef
16.
Henderson PE, Baldone SC (1989) Facial nerve palsy secondary to acute otitis media. J Am Osteopath Assoc 89:207–210PubMed
17.
Isaacson G, Mintz MC, Sasaki CT (1986) Magnetic resonance imaging of the fetal temporal bone. Laryngoscope 96:1343–1346PubMedCrossRef
18.
19.
Kodros A, Buckingham RA (1957) The anatomy of the descending portion of the facial nerve. AMA Arch Otolaryngol 66:735ACrossRef
20.
Mani N, Sudhoff H, Rajagopal S, Moffat D, Axon PR (2007) Cranial nerve involvement in malignant external otitis: implications for clinical outcome. Laryngoscope 117:907–910PubMedCrossRef
21.
McManus LJ, Dawes PJD, Stringer MD (2012) Surgical anatomy of the chorda tympani: a micro-CT study. Surg Radiol Anat 34:513–518PubMedCrossRef
22.
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. AJNR Am J Neuroradiol 17:1467–1477PubMed
23.
Proctor B (1988) Surgical anatomy of the ear and temporal bone. Thieme Medical Publishers, New York
24.
Sepahdari AR, Mong S (2013) Skull base CT: normative values for size and symmetry of the facial nerve canal, foramen ovale, pterygoid canal, and foramen rotundum. Surg Radiol Anat 35:19–24PubMedCrossRef
25.
Sercer A, Krmpotic J (1958) Further contribution to the development of the labyrinthine capsule. J Laryngol Otol 72:688–698PubMedCrossRef
26.
Sheehy JL, Brackmann DE, Graham MD (1977) Cholesteatoma surgery: residual and recurrent disease. A review of 1,024 cases. Ann Otol Rhinol Laryngol 86:451–462PubMedCrossRef
27.
Spector JG, Ge X (1993) Ossification patterns of the tympanic facial canal in the human fetus and neonate. Laryngoscope 103:1052–1065PubMed
28.
29.
Weiglein AH (1996) Postnatal development of the facial canal. An investigation based on cadaver dissections and computed tomography. Surg Radiol Anat 18(2):115–123PubMedCrossRef
30.
Wiggins RH, Harnsberger HR, Salzman KL, Shelton C, Kertesz TR, Glastonbury CM (2006) The many faces of facial nerve schwannoma. AJNR Am J Neuroradiol 27:694–699PubMed
Metadata
Title
The morphology and morphometry of the fetal fallopian canal: a microtomographic study
Authors
Tymon Skadorwa
Mateusz Maślanka
Bogdan Ciszek
Publication date
01-08-2015
Publisher
Springer Paris
Published in
Surgical and Radiologic Anatomy / Issue 6/2015
Print ISSN: 0930-1038
Electronic ISSN: 1279-8517
DOI
https://doi.org/10.1007/s00276-014-1395-2

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