gms | German Medical Science

58. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie e. V. (DGNC)

Deutsche Gesellschaft für Neurochirurgie (DGNC) e. V.

26. bis 29.04.2007, Leipzig

Hibernoma – a rare case of nerve compression

Hibermone – ein seltener Nervenkompressionsfall

Meeting Abstract

  • corresponding author M.T. Pedro - Neurochirurgische Abteilung der Universität Ulm am BKH zu Günzburg
  • T. Kretschmer - Neurochirurgische Abteilung der Universität Ulm am BKH zu Günzburg
  • H.-P. Richter - Neurochirurgische Abteilung der Universität Ulm am BKH zu Günzburg
  • G. Antoniadis - Neurochirurgische Abteilung der Universität Ulm am BKH zu Günzburg

Deutsche Gesellschaft für Neurochirurgie. 58. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie e.V. (DGNC). Leipzig, 26.-29.04.2007. Düsseldorf: German Medical Science GMS Publishing House; 2007. DocP 121

Die elektronische Version dieses Artikels ist vollständig und ist verfügbar unter: http://www.egms.de/de/meetings/dgnc2007/07dgnc376.shtml

Veröffentlicht: 11. April 2007

© 2007 Pedro 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

Text

Objective: Hibernoma arises from residuals of fetal brown adipose tissue. Slow growing it can cause compression of the neighbouring structures as muscles or nerves. The authors describe a case of hibernoma with compression of the sciatic nerve.

Methods: A thirty-six-year-old male complains of pain and paraesthesia of his left thigh for almost one year. In addition, he notices a swelling of his femur. Motor function is not affected. An electrophysiological study does not show any signs of denervation of the tibial anterior, peroneal or triceps surae muscles, but SEP of the left peroneal nerve reveales a deceleration of 6 m/sec compared to the right side. MRI showes a mass lesion of 20x10 cm, which is located under the biceps femoris muscle. The tumor seems to consist of some liquid and adipose tissue. The patient undergoes pre-surgery staging, but no metastases or any other tumors are found.

Results: The tumor causes a compression of the sciatic nerve and displaces it downwards. The mass lesion in its pseudocapsule was resected in toto and nerval structures released. The histopathological study revealed a hibernoma. Radiatio and chemotherapy were therefore not necessary. The postoperative course was uneventful and the patient discharged on the 8th postoperative day with light paraesthesia of the dorsal part of his leg and without motor weakness and numbness in the sciatic territory.

Conclusions: The Hibernoma is a rare benign tumor. The most common localizations are thigh, back, arm or chest. Its total resection is necessary before malignant transformation occurs.