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CyberKnife radiosurgery for extremity schwannomas: technical note and case report
1Department of Neurosurgery, Stanford University Hospital, Stanford, CA 94305-5327, USA.
Stereotactic and Functional Neurosurgery
|June 23, 2006
Summary
CyberKnife radiosurgery may be a viable treatment for peripheral nerve sheath tumors, offering symptom relief and tumor control without neurological compromise. This preliminary study highlights its potential as an alternative to surgery.
Area of Science:
- Neurosurgery
- Radiation Oncology
- Oncology
Background:
- Peripheral nerve sheath tumors (PNSTs) are rare neoplasms.
- Surgical resection is the primary treatment for symptomatic PNSTs.
- Nerve injury risk is a significant concern, especially in genetic predisposition cases.
Observation:
- A single patient with multiple symptomatic peripheral extremity schwannomas was treated with CyberKnife radiosurgery.
- The maximum radiation dose (Dmax) ranged from 24.4 to 25.32 Gy for each tumor.
- Follow-up at 1 year demonstrated symptom improvement and stable tumor size.
Findings:
- CyberKnife radiosurgery resulted in symptom amelioration for peripheral extremity schwannomas.
- No tumor progression was observed at the 1-year follow-up.
- Neurological function remained intact post-treatment.
Implications:
- Stereotactic radiosurgery, specifically CyberKnife, is presented as a potential treatment modality for PNSTs.
- This represents the first published case series of PNSTs treated with stereotactic radiosurgery.
- Further research is warranted to establish the efficacy and safety of radiosurgery for PNSTs.
