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European Archives of Oto-Rhino-Laryngology
Published in: European Archives of Oto-Rhino-Laryngology 8/2007

01-08-2007 | Head and Neck

A combined third and fourth branchial arch anomaly: clinical and embryological implications

Authors: H. Mehrzad, C. Georgalas, C. Huins, N. S. Tolley

Published in: European Archives of Oto-Rhino-Laryngology | Issue 8/2007

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Abstract

Embryological abnormalities of the branchial apparatus present an interesting diagnostic and surgical challenge. Thymic cysts are a rare form of branchial apparatus anomaly, resulting from abnormal development of the third pharyngeal pouch. We present two cases of a thymic cyst coexisting with a non recurrent inferior laryngeal nerve (NRILN), two anomalies that to our knowledge have not been associated previously. A possible embryological explication for this double abnormality is discussed, while the clinical implications of this association are presented.
Literature
1.
Gray Henry (1918) Embryology, the branchial region. Anatomy of the human body, pp 1–6
2.
3.
Kaufman MR, et al (2001) Thymopharyngeal duct cyst. An unusual variant of cervical thymic anomalies. Arch Otolaryngol Head Neck Surg 127:1357–1360PubMed
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Avisse C, et al (1998) Right nonrecurrent inferior laryngeal nerve and arteria lusoria: the diagnostic and therapeutic implications of an anatomic anomaly. Surg Radiol Anat 20:227–232PubMed
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Srinivasan V, Premachandra DJ (1997) Non-recurrent laryngeal nerve: identification during thyroid surgery. ORL J Otorhinolaryngol Relat Spec 59:57–59PubMed
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Pisanu A, Pili S, Uccheddu A (2002) Non-recurrent inferior laryngeal nerve. Chir Ital 54(1):7–14PubMed
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Parviz Janfaza et al (2000) Surgical anatomy of the head and neck, pp 580–586
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Zarbo RJ, McClatchey KD, Areen RG, Baker SB (1983) Thymopharyngeal duct cyst: a form of Cervical Thymus. Ann Otol Rhinol Laryngol 92:284–289
Metadata
Title
A combined third and fourth branchial arch anomaly: clinical and embryological implications
Authors
H. Mehrzad
C. Georgalas
C. Huins
N. S. Tolley
Publication date
01-08-2007
Publisher
Springer-Verlag
Published in
European Archives of Oto-Rhino-Laryngology / Issue 8/2007
Print ISSN: 0937-4477
Electronic ISSN: 1434-4726
DOI
https://doi.org/10.1007/s00405-007-0271-7

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