Abstract
IntroductionSchwannoma, otherwise known as a neurilemmoma, is a tumor arising from peripheral nerve sheaths. Although commonly noted in association with the eighth cranial nerve as intracranial acoustic neuroma, cases of schwannoma arising in other locations have been reported in the literature. These tumors usually cause symptoms as a result of their mass effect and, since they are benign, encapsulated and non-invasive tumors, complete surgical excision is considered curative.Case presentationWe report the case of a 46-year-old Sri Lankan man who presented to our facility with recent onset of difficulty evacuating his bowels. He was noted to have a giant presacral schwannoma on magnetic resonance imaging scan. The mass was surgically excised with improvement of our patient’s symptoms. A subsequent histopathological examination confirmed the presence of a benign schwannoma.ConclusionsAlthough schwannomas commonly occur in the extremities, a rare case of occurrence in the pelvis is reported here. Due to the limited space in the pelvis, the local mass effect may be the presenting feature of such a lesion and surgical excision is curative.
Highlights
Conclusions: schwannomas commonly occur in the extremities, a rare case of occurrence in the pelvis is reported here
Schwannoma, otherwise known as a neurilemmoma, is a tumor arising from peripheral nerve sheaths
Commonly noted in association with the eighth cranial nerve as intracranial acoustic neuroma, cases of schwannoma arising in other locations have been reported in the literature [1,2,3,4,5,6,7]
Summary
Schwannomas commonly occur in the extremities, more rare sites of occurrence such as presacral locations should always be considered in the differential diagnosis of a pelvic mass. Such lesions may produce a significant mass effect due to the limited space available to accommodate growth in the rigid bony skeleton in the pelvis. Consent Written informed consent was obtained from the patient for publication of this case report and any accompanying images. AW and RS performed the surgery and made critical revisions to the manuscript. AW, RS and SK were in charge of the surgical care of our patient. All authors read and approved the manuscript
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