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Article: Extracranial head and neck schwannomas: A study of the nerve of origin

TitleExtracranial head and neck schwannomas: A study of the nerve of origin
Authors
KeywordsExtracranial
Head
Neck
Nerve of origin
Neurilemmoma
Schwannoma
Issue Date2011
PublisherSpringer Berlin / Heidelberg
Citation
European Archives Of Oto-Rhino-Laryngology, 2011, v. 268 n. 9, p. 1343-1347 How to Cite?
Abstract
Schwannoma is a type of benign nerve sheath tumour arising from the Schwann cell. Because of the close relationship between the tumour and the nerve of origin (NOO), the operation of extracranial head and neck schwannoma may lead to palsy of major nerve. For this reason, an accurate diagnosis of schwannoma with the identification of the NOO is crucial to the management. The aim of this review was to find out the distribution of the NOO and the usefulness of the investigations in the diagnosis of schwannoma. Medical records of the patients who underwent operation of the extracranial head and neck schwannoma in our division were reviewed. Between January 2000 and December 2009, 30 cases of extracranial head and neck schwannoma were operated. Sympathetic trunk (10, 33%) and vagus nerve (6, 20%) were the two most common NOOs. In five (17%) cases, the NOO was not found to be arising from any major nerve. For these 30 patients, 20 received fine needle aspiration cytology (FNAC) and 26 underwent imaging studies (computed tomography or magnetic resonance imaging) before operation. The specificity of FNAC and imaging studies in making the diagnosis of schwannoma was 20 and 38%, respectively. For the patients who had nerve palsies on presentation, their deficits remained after operation. The rate of nerve palsy after tumour excision with division of NOO and intracapsular enucleation was 100 and 67%, respectively. The diagnosis of schwannoma is suggested by clinical features and supported by investigations. Most of the time, the diagnosis can only be confirmed on the histological study of the surgical specimen. Sympathetic trunk and vagus nerve are the two common NOOs. MRI is the investigation of choice in the diagnosis of schwannoma and the identification of NOO. © 2011 The Author(s).
Persistent Identifierhttp://hdl.handle.net/10722/145086
ISSN
2013 Impact Factor: 1.608
PubMed Central ID
ISI Accession Number ID
References

 

Author Affiliations
  1. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorLiu, HLen_HK
dc.contributor.authorYu, SYen_HK
dc.contributor.authorLi, GKHen_HK
dc.contributor.authorWei, WIen_HK
dc.date.accessioned2012-02-21T05:43:39Z-
dc.date.available2012-02-21T05:43:39Z-
dc.date.issued2011en_HK
dc.identifier.citationEuropean Archives Of Oto-Rhino-Laryngology, 2011, v. 268 n. 9, p. 1343-1347en_HK
dc.identifier.issn0937-4477en_HK
dc.identifier.urihttp://hdl.handle.net/10722/145086-
dc.description.abstractSchwannoma is a type of benign nerve sheath tumour arising from the Schwann cell. Because of the close relationship between the tumour and the nerve of origin (NOO), the operation of extracranial head and neck schwannoma may lead to palsy of major nerve. For this reason, an accurate diagnosis of schwannoma with the identification of the NOO is crucial to the management. The aim of this review was to find out the distribution of the NOO and the usefulness of the investigations in the diagnosis of schwannoma. Medical records of the patients who underwent operation of the extracranial head and neck schwannoma in our division were reviewed. Between January 2000 and December 2009, 30 cases of extracranial head and neck schwannoma were operated. Sympathetic trunk (10, 33%) and vagus nerve (6, 20%) were the two most common NOOs. In five (17%) cases, the NOO was not found to be arising from any major nerve. For these 30 patients, 20 received fine needle aspiration cytology (FNAC) and 26 underwent imaging studies (computed tomography or magnetic resonance imaging) before operation. The specificity of FNAC and imaging studies in making the diagnosis of schwannoma was 20 and 38%, respectively. For the patients who had nerve palsies on presentation, their deficits remained after operation. The rate of nerve palsy after tumour excision with division of NOO and intracapsular enucleation was 100 and 67%, respectively. The diagnosis of schwannoma is suggested by clinical features and supported by investigations. Most of the time, the diagnosis can only be confirmed on the histological study of the surgical specimen. Sympathetic trunk and vagus nerve are the two common NOOs. MRI is the investigation of choice in the diagnosis of schwannoma and the identification of NOO. © 2011 The Author(s).en_HK
dc.languageEngen_US
dc.publisherSpringer Berlin / Heidelbergen_US
dc.relation.ispartofEuropean Archives of Oto-Rhino-Laryngologyen_HK
dc.rightsThe Author(s)en_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong Licenseen_US
dc.subjectExtracranialen_HK
dc.subjectHeaden_HK
dc.subjectNecken_HK
dc.subjectNerve of originen_HK
dc.subjectNeurilemmomaen_HK
dc.subjectSchwannomaen_HK
dc.titleExtracranial head and neck schwannomas: A study of the nerve of originen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4551/resserv?sid=springerlink&genre=article&atitle=Extracranial head and neck schwannomas: a study of the nerve of origin&title=European Archives of Oto-Rhino-Laryngology&issn=09374477&date=2011-09-01&volume=268&issue=9& spage=1343&authors=Hin-Lun Liu, Suet-Ying Yu, George Kam-Hop Li, <i>et al.</i>en_US
dc.identifier.emailWei, WI: hrmswwi@hku.hken_HK
dc.identifier.authorityWei, WI=rp00323en_HK
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1007/s00405-011-1491-4en_HK
dc.identifier.pmid21246207en_HK
dc.identifier.pmcidPMC3149663-
dc.identifier.scopuseid_2-s2.0-80052741625en_HK
dc.identifier.hkuros184436-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052741625&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume268en_HK
dc.identifier.issue9en_HK
dc.identifier.spage1343en_HK
dc.identifier.epage1347en_HK
dc.identifier.eissn1434-4726en_US
dc.identifier.isiWOS:000293554500016-
dc.publisher.placeGermanyen_HK
dc.description.otherSpringer Open Choice, 21 Feb 2012en_US
dc.identifier.scopusauthoridLiu, HL=26647482200en_HK
dc.identifier.scopusauthoridYu, SY=7405728736en_HK
dc.identifier.scopusauthoridLi, GKH=50262016900en_HK
dc.identifier.scopusauthoridWei, WI=7403321552en_HK
dc.identifier.citeulike8767877-

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