Intraosseous Schwannoma Arising within the Thoracic Vertebra: A Case Report.

Introduction: Schwannomas are common benign tumors that develop in the peripheral nerves and are common in intradural extramedullary lesions of the spine. However, intraosseous schwannoma is extremely rare. Case Presentation: A 24-year-old man experienced back pain for 5 months. Imaging revealed a lytic lesion with marginal sclerosis in the body of the 12th thoracic vertebra, with vertebral collapse, thinning, and bulging of the posterior margins of the vertebral body. Needle biopsy suggested a benign neurogenic tumor, and a total en bloc spondylectomy was performed. Postoperative pathological examination revealed an intraosseous schwannoma. Conclusion: Although intraosseous schwannoma is rare, intraosseous vertebral schwannoma can occur, as observed in this case; therefore, clinicians should be aware of this condition and consider it as a differential diagnosis for vertebral tumors.