World Journal of Laparoscopic Surgery

Register      Login

VOLUME 17 , ISSUE 1 ( January-April, 2024 ) > List of Articles


Abnormally Located Benign Nerve Sheath Tumor—Retroperitoneal Schwannoma Managed Laparoscopically: A Case Report

B Ramesh, Priyanka Sukumar, Kiran R Konda, Meghana Sreenivas

Keywords : Case report, Laparoscopy, Nerve sheath tumors, Retroperitoneal, Schwannoma

Citation Information : Ramesh B, Sukumar P, Konda KR, Sreenivas M. Abnormally Located Benign Nerve Sheath Tumor—Retroperitoneal Schwannoma Managed Laparoscopically: A Case Report. World J Lap Surg 2024; 17 (1):61-64.

DOI: 10.5005/jp-journals-10033-1608

License: CC BY-NC 4.0

Published Online: 14-02-2024

Copyright Statement:  Copyright © 2024; The Author(s).


Aim and background: To demonstrate the clinical findings and management of a retroperitoneal Schwannoma, which presented as a gynecological mass. Nerve sheath tumors are benign tumors affecting the cranial and peripheral nerves. Schwannoma refers to tumors arising from the Schwann cells of neurons. Case description: A 56-year-old female presented to us with vague lower abdominal pain since 3 months. It was initially diagnosed as a inclusion cyst. Intraoperatively diagnosed with retroperitoneal benign looking mass, which turned out to be a schwannoma. We present a case of left-sided retroperitoneal schwannoma which masqueraded as a gynecological mass and operated by laparoscopy. Conclusion: Schwannomas are benign, encapsulated, slow-growing nerve sheath tumors. Rarely seen in the pelvis and retroperitoneum. Laparoscopy aids in better visualization with more accurate surgical removal of these masses and can be considered the treatment of choice for these tumors. Clinical significance: Often asymptomatic and may go unnoticed, but when presenting with symptoms or when discovered incidentally on scans for other reasons, they are mistaken for gynecological or urological masses and are more often presented to gynecologist/urologist.

  1. Machairiotis N, Zarogoulidis P, Stylianaki A, et al. Pelvic schwannoma in the right parametrium. Int J Gen Med 2013;6:123. DOI: 10.2147/IJGM.S41224.
  2. Strauss DC, Qureshi YA, Hayes AJ, et al. Management of benign retroperitoneal schwannomas: A single-center experience. Am J Surg 2011;202:194–198. DOI: 10.1016/j.amjsurg.2010.06.036.
  3. Sinha R, Sundaram M, Hegde A, et al. Pelvic schwannoma masquerading as broad ligament myoma. J Minim Invasive Gynecol 2008;15:217–219. DOI: 10.1016/J.JMIG.2007.09.009.
  4. Daneshmand S, Youssefzadeh D, Chamie K, et al. Benign retroperitoneal schwannoma: A case series and review of the literature. Urology 2003;62:993–997. DOI: 10.1016/s0090-4295(03)00792-1.
  5. Deng C, Wang P, Liu Y, et al. Laparoscopic resection of pelvic schwannomas: A 9-year experience at a single center. World Neurosurg X 2023;17:100150. DOI: 10.1016/j.wnsx.2022.100150.
  6. Dawley B. A retroperitoneal femoral nerve schwannoma as a cause of chronic pelvic pain. J Minim Invasive Gynecol 2008;15:491–493. DOI: 10.1016/J.JMIG.2008.02.007.
  7. McMenamin ME, Fletcher CDM. Expanding the spectrum of malignant change in schwannomas: Epithelioid malignant change, epithelioid malignant peripheral nerve sheath tumor, and epithelioid angiosarcoma: A study of 17 cases. Am J Surg Pathol 2001;25:13–25. DOI: 10.1097/00000478-200101000-00002.
  8. Takahashi H, Hara M, Tsuboi K, et al. Laparoscopically resected obturator nerve schwannoma: A case report. Asian J Endosc Surg 2016;9:307–310. DOI: 10.1111/ases.12291.
  9. Choudry HA, Nikfarjam M, Liang JJ, et al. Diagnosis and management of retroperitoneal ancient schwannomas. World J Surg Oncol 2009;7:12. DOI: 10.1186/1477-7819-7-12.
  10. Guedes-Corrêa JF, Cardoso RSV. Immunohistochemical markers for schwannomas, neurofibromas and malignant peripheral nerve sheath tumors—what can the recent literature tell us? Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery 2018;37: 105–112.
  11. Goh BKP, Tan YM, Chung YFA, et al. Retroperitoneal schwannoma. Am J Surg 2006;192:14–18. DOI: 10.1016/J.AMJSURG.2005.12.010.
  12. Konstantinidis K, Theodoropoulos GE, Sambalis G, et al. Laparoscopic resection of presacral schwannomas. Surg Laparosc Endosc Percutan Tech 2005;15:302–304. DOI: 10.1097/01.sle.0000183252.96808.78.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.