Volumetric Changes in a Cervical Schwannoma in Response to Adjuvant Stereotactic Body Radiation Therapy: A Case Report

Abstract Stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT) are the commonly employed treatment modalities for intra- and extracranial schwannomas. Transient swelling is common following SRS for vestibular schwannomas. We highlight the volumetric change following adjuvant SBRT of a schwannoma of the cervical spine. The patient initially presented with pain and numbness in the left arm, which led to diagnosis of a benign schwannoma in the cervical spine region. She then underwent subtotal surgical resection, followed by SBRT of the residual tumor. The volume of the schwannoma was measured on subsequent neuroimaging to ascertain the post-SBRT treatment response. To our knowledge, this is the first published report of transient swelling of a cervical schwannoma.