Hostname: page-component-76fb5796d-5g6vh Total loading time: 0 Render date: 2024-04-25T13:53:50.306Z Has data issue: false hasContentIssue false
  • English
  • Français

Clinical correlates of acoustic neuroma morphology

Published online by Cambridge University Press:  29 June 2007

David A. Moffat ,
Jonathan Golledge ,
David M. Baguley  and
David G. Hardy
David A. Moffat
Affiliation:
Department of Otoneurosurgery, Addenbrooke's Hospital, Cambridge.
Jonathan Golledge*
Affiliation:
Department of Otoneurosurgery, Addenbrooke's Hospital, Cambridge.
David M. Baguley
Affiliation:
Department of Otoneurosurgery, Addenbrooke's Hospital, Cambridge.
David G. Hardy
Affiliation:
Department of Otoneurosurgery, Addenbrooke's Hospital, Cambridge.
*
Mr D. A. Moffat, F.R.C.S., Department of Otoneurosurgery, Addenbrooke's Hospital, Hills Road, Cambridge CB2 2QQ
Get access Rights & Permissions [Opens in a new window]

Abstract

Thirty–eight patients with vestibular schwannomas were reviewed. A correlation was found between tumour morphology and clinical presentation. Based on our knowledge of the variability in the neurilemmalneuroglial junction and therefore the site of origin of these tumours in relation to the internal auditory canal, a classification into three different appearances on magnetic resonance imaging was possible. Dumbbell shaped tumours (21 per cent) represented laterally arising schwannomas, lollipop shaped tumours (18 per cent) were medially arising and cone shaped tumours (61 per cent) were the more common intermediate form. Patients with laterally arising dumb–bell shaped tumours were more likely to present early with hearing loss and had smaller tumours than patients with medially arising lollipop shaped ones. The relatively well preserved hearing in patients with medially arising tumours made them more likely to present at a later stage with signs of trigeminal compression, cerebellar dysfunction and raised intracranial pressure.

Keywords

Cranial nerve neoplasmsvestibular schwannomaClassification
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 107 , Issue 4 , April 1993 , pp. 290 - 294
Copyright
Copyright © JLO (1984) Limited 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Presented at the Audiology in Europe Symposium, September 1992, Cambridge

References

Baguley, D. M, Moffat, D. A., Tsui, Yn. (1989) Audiological findings in medial and lateral acoustic neuromas. British Journal of Audiology 23:(2) 158–159.Google Scholar
Bradley, W. G., Shelden, C. H. (1983) Nuclear magnetic resonance imaging. American Journal of Surgery 146: 85–87.CrossRefGoogle ScholarPubMed
Daniels, D. L., Millen, S. J., Meyer, G. A., Pojunas, K. W., Kilgore, D. P., Shaffer, K. A., Williams, A. L., Haughton, V. M. (1987) MR detection of tumor in the internal auditory canal. American Journal of Roentgenology 148: 1219–1222.CrossRefGoogle ScholarPubMed
Daumann, R., Aran, J.-M., Portman, M. (1988) Clinical Otolaryngology 13: 107–114.CrossRefGoogle Scholar
House, J. W., Waluch, V., Jackler, R. K. (1986) Magnetic resonance imaging in acoustic neuroma diagnosis. Annals of Otology, Rhinology and Laryngology 95: 16–20.CrossRefGoogle ScholarPubMed
Kasantikul, V., Netsky, M. G., Glasscock, M. E., Hays, J. W. (1980) Acoustic neurilemmonas. Journal of Neurosurgery 52: 28–35.CrossRefGoogle Scholar
Kingsley, D. P. E., Brooks, G. B., Leung, A. W.-L., Johnson, M. A. (1985) Acoustic neuromas: evaluation by magnetic resonance imaging. American Journal of Neuroradiology 6: 1–5.Google ScholarPubMed
Luetje, C. M., Whittaker, C. K., Callaway, L. A., Veraga, G. (1983) Histological acoustic tumour involvement of the VIIIth nerve and multicentric origin in the VIIth nerve. Laryngoscope 93: 1133–1139.CrossRefGoogle ScholarPubMed
Mikhael, M. A., Wolff, A. P., Ciric, I. S. (1987) Current concepts in neuroradiological diagnosis of Acoustic Neuromas. Laryngoscope 97: 471–476.CrossRefGoogle ScholarPubMed
Moffat, D. A., Hardy, D. G., Baguley, D. M. (1989a) The strategy and benefits of acoustic neuroma searching. Journal of Laryngology and Otology 103: 51–59.CrossRefGoogle ScholarPubMed
Moffat, D. A., Croxson, G. R., Baguley, D. M., Hardy, D. G. (1989b) Facial nerve recovery after acoustic neuroma removal. Journal of Laryngology and Otology, 103: 169–172.CrossRefGoogle ScholarPubMed
Morrison, A. W., Gibson, W. P. R., Beagley, H. A. (1976) Transtympanic electrocochleography in the diagnosis of retrocochlear tumours. Clinical Otolaryngology 1: 153–167.CrossRefGoogle ScholarPubMed
Nager, G. T., Baltimore, M. D. (1969) Acoustic neuromas. Archives of Otolaryngology 89: 68–95.Google Scholar
Petrie, A. (1978) Comparison of two means. In Lecture Notes on Medical Statistics, Ch 8. Blackwell Oxford.CrossRefGoogle Scholar
Skinner, H. A. (1929) The origin of acoustic nerve tumours. British Journal of Surgery 16: 440–463.CrossRefGoogle Scholar
Thomsen, J., Tos, M. (1990) Acoustic neuromas: clinical aspects, audiovestibular assessment, diagnostic delay, and growth rate. American Journal of Otology 11: 12–19.Google ScholarPubMed