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Introduction And Importance: Schwannomas are benign tumors that arise from Schwann cells commonly located in peripheral nerves. Depending on the size and location of sciatic nerve Schwannoma clinical manifestations can either varies from symptoms simulating radiculopathies such as positive Lasegue sign on the affected side, gait weakness and paresthesia or just present with pain and an associated palpable mass.

Case Presentation: The authors present a case of a 34-year-old female patient suffering from pain, gait weakness, and a palpable mass since many months.

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Sciatic nerve schwannomas are rare tumors, mainly characterized by sciatic neuralgia rather than sensory-motor deficits. The poorly suggestive clinical presentation of this localization leads to a delayed diagnosis. Here, we describe the case of a 47-year-old female patient with a nine-month history of schwannoma localized in the sciatic nerve, just above the left popliteal fossa.

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Rationale: Neurofibromatosis type 1 (NF1) is an autosomal dominant neurocutaneous syndrome that causes multiple central and peripheral nerve sheath tumors. People with NF1 have a 10% chance of developing malignant peripheral nerve sheath tumors (MPNSTs). Here we report a unique instance of a malignant schwannoma that has remained free of metastasis since its initial removal a decade ago.

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Surgical management of sporadic and schwannomatosis-associated pelvic schwannomas.

Neurosurg Rev

October 2023

Department of Neurosurgery, Bâtiment Babinski, Groupe Hospitalier Pitié-Salpêtrière, APHP, Sorbonne Universités, 47-83 boulevard de l'Hôpital, 75013, Paris, France.

Pelvic schwannomas are rare tumors that may occur either sporadically or in the context of schwannomatosis. We retrospectively reviewed the charts of patients harboring a pelvic schwannoma under conservative management or operated at our reference center between 2016 and 2023. All patients were operated by a multidisciplinary team, combining a vascular surgeon and a neurosurgeon.

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BACKGROUND Sciatica, which is pain radiating along the sciatic nerve distribution, is most often caused by degenerative conditions of the lower back and rarely results from lesions of the spinal cord. This case report illustrates a patient with suspected lumbar radiculopathy, ultimately diagnosed with a thoracic schwannoma after visiting a chiropractor. CASE REPORT A 61-year-old woman presented to a chiropractor with progressively worsening lower back pain radiating to the right lower extremity and unsteady gait.

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