The neuromas presumably arose from small perivascular nerve twigs that have been implicated in the pathogenesis of intramedullary neuromas in non-neoplastic spinal diseases.

• 神经瘤大概由血管周小神经末梢发展而来，这些神经末梢与髓内神经瘤（非肿瘤性脊髓疾病）的发生有一定关系。