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Shoko Merrit Yamada,Yusuke Tomita,Soichiro Shibui,Takashi Kurokawa,Yasuhisa Baba 한국유방암학회 2017 Journal of breast cancer Vol.20 No.2
The median time of brain metastasis from the diagnosis of breast cancer is approximately 3 years. In this case report, a 69-yearold woman demonstrated cerebellar ataxia. Brain magnetic resonance imaging revealed enhanced lesions in bilateral cerebellar hemispheres. She had undergone surgery, radiation, and chemotherapy for uterine and breast cancer 24 years prior and 16 years prior, respectively. Although she had not received any anticancer treatment for 10 years, no recurrences were identified using whole body scans. A partial tumor resection was performed and the histological diagnosis was an adenocarcinoma from breast cancer. As no extracranial lesions were found, gammaknife irradiation was performed, without additional systemic chemotherapy. One month posttreatment, the tumors dramatically reduced in size and the patient completely recovered from cerebellar ataxia. Systemic chemotherapy is not always required for brain metastasis from breast cancer with a long interval period, as long as no evidence of extracranial recurrence is detected.