gms | German Medical Science

55. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie e. V. (DGNC)
1. Joint Meeting mit der Ungarischen Gesellschaft für Neurochirurgie

Deutsche Gesellschaft für Neurochirurgie (DGNC) e. V.

25. bis 28.04.2004, Köln

High-Resolution Ultrasonography in the Preoperative Diagnosis of Peripheral nerve Tumours: an attractive Alternative to MRI

Hochauflösender Ultraschall in der präoperativen Diagnostik von peripheren Nerventumoren - eine interessante Alternative zur Kernspintomographie

Meeting Abstract

Suche in Medline nach

  • corresponding author Raphaela Verheggen - Klinik für Neurochirurgie, Universitätsklinikum Göttingen, Göttingen
  • H. Kele - Klinik für Neurochirurgie, Universitätsklinikum Göttingen, Göttingen

Deutsche Gesellschaft für Neurochirurgie. Ungarische Gesellschaft für Neurochirurgie. 55. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie e.V. (DGNC), 1. Joint Meeting mit der Ungarischen Gesellschaft für Neurochirurgie. Köln, 25.-28.04.2004. Düsseldorf, Köln: German Medical Science; 2004. DocMO.11.08

Die elektronische Version dieses Artikels ist vollständig und ist verfügbar unter: http://www.egms.de/de/meetings/dgnc2004/04dgnc0114.shtml

Veröffentlicht: 23. April 2004

© 2004 Verheggen et al.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.de). Er darf vervielf&aauml;ltigt, verbreitet und &oauml;ffentlich zug&aauml;nglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.


Gliederung

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Objective

Due to recent improvements in ultrasound scanning techniques, an increasing number of nerves can be investigated to uncover peripheral nerve tumours. We further investigated this method in order to improve the pre-operative diagnosis and plan the optimal surgical strategy.

Methods

In the last 30 months, we treated eleven patients (3 female and 8 males) with peripheral nerve tumours: 6 neurofibromas, 1 perineurioma, 1 lipofibroma, 1 neurinoma and 1 malignant schwannoma. The pre-operative diagnosis included electromyography combined with nerve conduction studies and MR imaging. High-resolution ultrasonography was performed to detect morphological changes in the peripheral nerve, to assess the adjacent soft tissue, muscles and vessels and to investigate the respective nerve in function. A special focus was laid on the comparison of ultrasonography to MRI.

Results

The surgical approach was tailored according to the nerve and the tumour location. The nerve or element leading into and out of the tumour, adjacent vessels and adherent structures were exposed. The fascicular anatomy at both proximal and distal poles of the lesion were microsurgically worked out. In three cases of benign tumours, an interfascicular graft repair was necessary after tumour resection. In one case of a malignant neural sheath tumour, we favoured a limb-sparing but wide local resection of the neural tumour and the adjacent tissue. The results of the pre-operative ultrasound exactly defined the resection area and were, in all cases, in accordance with MRI and the intraoperative findings.

Conclusions

High-resolution ultrasonography facilitates the preoperative diagnosis, reveals the topographic relation and ensures the detection of morphologic changes within the neural tissue. The equivalent results of MRI investigations favour ultrasonography as the initial method in the evaluation of nerve tumours.