Abstract:

Schwannomas or neurilemmomas are encapsulated tumors arising from the neural sheath of peripheral nerves. They are usually present in the head and neck or in the upper extremities, but may appear in the posterior mediastinum and more rarely in the retroperitoneum. The latter are often found incidentally or may present with vague, non-specific symptoms if the tumor is large enough to compress surrounding structures. A 47 years-old-female complaining of pelvic and lumbar pain has been admitted with the diagnosis of retroperitoneal pelvic solitary mass after radiologic evaluation. The mass has been resected totally through an anterior abdominopelvic incision and histopathology evaluation reported to be the schwannoma. Lumbosacral instrumentation and fusion with bone graft have been performed following the resection of the mass and destructed L5 vertebrae corpus. Postoperative period went uneventful.

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