gms | German Medical Science

64th Annual Meeting of the German Society of Neurosurgery (DGNC)

German Society of Neurosurgery (DGNC)

26 - 29 May 2013, Düsseldorf

Neurosurgical treatment and outcome of Schwanommas arising from lumbosakral plexus or pelvic peripheral nerves. Case series and review of the literature

Meeting Abstract

  • Rezvan Ahmadi - Neurochirurgische Universitätsklinikum Heidelberg
  • Arianeb Mehrabi - Chirurgische Universitätsklinik, Universitätsklinikum Heidelberg
  • Mirko Pham - Abteilung für Neuroradiologie, Universitätsklinikum Heidelberg
  • Andreas Unterberg - Neurochirurgische Universitätsklinikum Heidelberg

Deutsche Gesellschaft für Neurochirurgie. 64. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC). Düsseldorf, 26.-29.05.2013. Düsseldorf: German Medical Science GMS Publishing House; 2013. DocP 002

doi: 10.3205/13dgnc428, urn:nbn:de:0183-13dgnc4280

Published: May 21, 2013

© 2013 Ahmadi et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.



Objective: Schwanommas of lumbosakral plexus or pelvic peripheral nerves are very rare retroperitoneal tumors. Clinical signs are non specific and they are not to be differed from other abdominal and pelvic masses radiologicaly. Complete removing of the tumor by resection of the nerve is a curative way of treatment but always associated with severe or permanent neurological impairments.

Method: Five cases of retroperitoneal schwanommas were treated at our department. To avoid any neurological postoperative sequels, tumors were resected by preparation of pseudocapsula and resection of carrying fascicle. Laparotomy was performed in cooperation with visceral surgeon to expose the nerve. Follow-up data including neurological outcome and MR-Imaging were collected over 3 years after surgery.

Results: Eighty percent (4 from 5) Patients had no sign of neurological disorder immediately after surgery. One patient reported paresthesia in supplying territory of tumor carrying nerve and without any motoric disturbance. After 3 months, there were no symptoms recorded in this case. All patients were completely free of complains after 3 Months and further follow-up. No residual tumor or relaps could be detected in follow-up MR-Imaging.

Conclusions: Interdisciplinary approach with the help of a visceral surgeon provides an optimal condition for a safe intraneural dissection and complete curative resection by the neurosurgeon; therefore, postoperative neurological disorders can be avoided.