Obturator Nerve Schwannoma as a Mimic of Ovarian Malignancy

The obturator nerve is an extremely rare location for schwannomas to originate, and such diagnosis is typically not considered among the imaging diagnostic possibilities for a cystic-solid pelvic mass. A 63-year-old female with a known pelvic mass presented with increasing pelvic pain. The mass, whi...

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Main Authors: Tyler Gleason, Brian H. Le, Kirthik Parthasarathy, Bernice Robinson-Bennett
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Case Reports in Obstetrics and Gynecology
Online Access:http://dx.doi.org/10.1155/2017/9724827
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author Tyler Gleason
Brian H. Le
Kirthik Parthasarathy
Bernice Robinson-Bennett
author_facet Tyler Gleason
Brian H. Le
Kirthik Parthasarathy
Bernice Robinson-Bennett
author_sort Tyler Gleason
collection DOAJ
description The obturator nerve is an extremely rare location for schwannomas to originate, and such diagnosis is typically not considered among the imaging diagnostic possibilities for a cystic-solid pelvic mass. A 63-year-old female with a known pelvic mass presented with increasing pelvic pain. The mass, which had been followed by serial imaging over five years, was described showing mixed solid and cystic components, likely arising from the left ovary. Although the key diagnosis to be excluded was a primary ovarian malignancy, the patient chose to pursue active surveillance. Over the five years of close observation, the lesion increased slowly, while her CA-125 level showed no significant elevation. Increase in size of the mass and worsening pain and concern for a gynecologic malignancy on MRI led her to ultimately consent to a hysterectomy with bilateral salpingooophorectomy. During the surgery, the mass was noted to be contiguous with the left obturator nerve. Pathologic evaluation revealed a schwannoma (WHO grade I). The patient’s postsurgical course was uneventful, without residual weakness in the left adductor muscles.
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spelling doaj-art-ddc8ad6824ac4e2da53aee2d43c74c6f2025-08-20T03:26:21ZengWileyCase Reports in Obstetrics and Gynecology2090-66842090-66922017-01-01201710.1155/2017/97248279724827Obturator Nerve Schwannoma as a Mimic of Ovarian MalignancyTyler Gleason0Brian H. Le1Kirthik Parthasarathy2Bernice Robinson-Bennett3Department of Medicine, Reading Health System, West Reading, PA 19611, USADepartment of Pathology, Reading Health System, West Reading, PA 16911, USADepartment of Obstetrics & Gynecology, Gynecologic Oncology, Reading Health System, West Reading, PA 19611, USADepartment of Obstetrics & Gynecology, Gynecologic Oncology, Reading Health System, West Reading, PA 19611, USAThe obturator nerve is an extremely rare location for schwannomas to originate, and such diagnosis is typically not considered among the imaging diagnostic possibilities for a cystic-solid pelvic mass. A 63-year-old female with a known pelvic mass presented with increasing pelvic pain. The mass, which had been followed by serial imaging over five years, was described showing mixed solid and cystic components, likely arising from the left ovary. Although the key diagnosis to be excluded was a primary ovarian malignancy, the patient chose to pursue active surveillance. Over the five years of close observation, the lesion increased slowly, while her CA-125 level showed no significant elevation. Increase in size of the mass and worsening pain and concern for a gynecologic malignancy on MRI led her to ultimately consent to a hysterectomy with bilateral salpingooophorectomy. During the surgery, the mass was noted to be contiguous with the left obturator nerve. Pathologic evaluation revealed a schwannoma (WHO grade I). The patient’s postsurgical course was uneventful, without residual weakness in the left adductor muscles.http://dx.doi.org/10.1155/2017/9724827
spellingShingle Tyler Gleason
Brian H. Le
Kirthik Parthasarathy
Bernice Robinson-Bennett
Obturator Nerve Schwannoma as a Mimic of Ovarian Malignancy
Case Reports in Obstetrics and Gynecology
title Obturator Nerve Schwannoma as a Mimic of Ovarian Malignancy
title_full Obturator Nerve Schwannoma as a Mimic of Ovarian Malignancy
title_fullStr Obturator Nerve Schwannoma as a Mimic of Ovarian Malignancy
title_full_unstemmed Obturator Nerve Schwannoma as a Mimic of Ovarian Malignancy
title_short Obturator Nerve Schwannoma as a Mimic of Ovarian Malignancy
title_sort obturator nerve schwannoma as a mimic of ovarian malignancy
url http://dx.doi.org/10.1155/2017/9724827
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AT bernicerobinsonbennett obturatornerveschwannomaasamimicofovarianmalignancy