Journal of Orthopaedic Surgery (Feb 2020)

Salvage carbon ion radiotherapy for recurrent solitary fibrous tumor: A case report and literature review

  • Kazuma Murata,
  • Kenji Endo,
  • Takato Aihara,
  • Yuji Matsuoka,
  • Hirosuke Nishimura,
  • Hidekazu Suzuki,
  • Yasunobu Sawaji,
  • Kengo Yamamoto,
  • Shinjiro Fukami,
  • Maki Tanigawa,
  • Jun Matsubayashi,
  • Toshitaka Nagao,
  • Reiko Imai

DOI
https://doi.org/10.1177/2309499019896099
Journal volume & issue
Vol. 28

Abstract

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Background: Malignant solitary fibrous tumor (MSFT) arising from the spinal cord is extremely rare and poorly understood mesenchymal neoplasms: only a few MSFT in the spinal canal has been described. We describe the clinical course of the patient with MSFT arising from the thoracic spinal cord. Case report: We describe the clinical course of the patient and the radiological and pathological findings of the tumor. The tumor had been resected by microscopic posterior approach and video-assisted thoracic surgery, but local recurrence was observed by MRI at 1-year follow-up period. No metastatic lesion was confirmed. Then, carbon ion radiotherapy (CIRT) was administered to the recurrent lesion. Local suppression has been observed for 40 months after irradiation. Conclusion: Dumbbell-shaped MSFT arising from thoracic spinal cord is a highly unusual presentation. CIRT might be effective for treatment of recurrent tumors.