@article{oai:nagoya.repo.nii.ac.jp:00016459, author = {Mori, Yoshimasa and Hashizume, Chisa and Shibamoto, Yuta and Kobayashi, Tatsuya and Nakazawa, Hisato and Hagiwara, Masahiro and Tsugawa, Takahiko}, issue = {3-4}, journal = {Nagoya Journal of Medical Science}, month = {Aug}, note = {Results of stereotactic radiotherapy (SRT ) for spinal intradural metastases developing inside or adjacent to the previous external-beam radiation therapy (EBRT ) field are shown in 3 cases. One case of spinal intramedullary metastasis and two cases of intradural extramedullary metastases were treated using a Novalis shaped-beam SRT . Case 1 developed an intramedullary metastatic tumor in the C1 spinal medulla inside the previous whole brain EBRT field and another lesion adjacent to the field in the C2 spinal medulla. Case 2 developed intradural extramedullary metastasis around C6-8 inside the previous EBRT field for the primary lung adenocarcinoma. Case 3 developed multiple spinal intradural extramedullary metastatic deposits after surgical resection and following whole brain EBRT for brain metastasis. We delivered 24 to 36 Gy in 5 to 12 fractions. The treated tumors were stable or decreased in size until the patients’ death from the primary cancer (10, 22, and 5 months). Neurological symptoms were stable or improved in all 3 patients. Palliative SRT using Novalis is expected to be safe and effective even if the patient develops spinal intradural metastases within or adjacent to the previous irradiation field.}, pages = {263--271}, title = {STEREOTACTIC RADIOTHERAPY FOR SPINAL INTRADURAL METASTASES DEVELOPING WITHIN OR ADJACENT TO THE PREVIOUS IRRADIATION FIELD : REPORT OF THREE CASES}, volume = {75}, year = {2013} }