Abstract
Background: Nerve sheath myxoma is a rare benign soft tissue tumor. Intraspinal nerve sheath myxomas are rare. Only 8 cases of intraspinal nerve sheath myxoma have been reported to date, and no case of nerve sheath myxoma has been reported in the cervical spinal canal. Herein, we reported the first case of intradural extramedullary nerve sheath myxoma in the cervical spinal canal of a 57-year-old man, including its complete clinical course and radiological findings.Case Presentation: A 57-year-old male patient presented with numbness in his left finger without any obvious inducement for 3 years. CT and contrast-enhanced magnetic resonance imaging (MRI) of the spine were performed. Based on the radiological examinations, a diagnosis of schwannoma was initially made. However, nerve sheath myxoma was finally confirmed by histopathological and immunohistochemical examinations. Complete tumor excision at the C1-2 level was performed. Then, the patient recovered well, and the numbness of his left finger disappeared during the later follow-up after the surgery.Conclusion: Nerve sheath myxoma should receive diagnostic consideration for an extramedullary subdural lesion that is a clear boundary mass characterized by isointensity on T1-weighted images, heterogeneous intensity on T2-weighted images, obvious peripheral enhancement, and a growing tendency toward the intervertebral foramen.
Highlights
Nerve sheath myxoma was firstly described by Harkin and Reed in 1969, which is a rare benign tumor of nerve sheath originating from the dermis and subcutaneous tissues [1]
To the best of our knowledge, only 8 cases of intraspinal nerve sheath myxoma have been reported to date [3–7]
No case of nerve sheath myxoma has been reported in the cervical spinal canal
Summary
Nerve sheath myxoma is a rare benign soft tissue tumor. 8 cases of intraspinal nerve sheath myxoma have been reported to date, and no case of nerve sheath myxoma has been reported in the cervical spinal canal. We reported the first case of intradural extramedullary nerve sheath myxoma in the cervical spinal canal of a 57-year-old man, including its complete clinical course and radiological findings. Case Presentation: A 57-year-old male patient presented with numbness in his left finger without any obvious inducement for 3 years. Nerve sheath myxoma was confirmed by histopathological and immunohistochemical examinations. Complete tumor excision at the C1-2 level was performed. The patient recovered well, and the numbness of his left finger disappeared during the later follow-up after the surgery
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