Differentiation of recurrent spinal ependymoma from postradiation treatment necrosis through multiparametric PET-MR and perfusion MRI

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• 关键词：Spinal ependymoma ; Radiation necrosis ; Multiparametric PET-MRI ; Perfusion MRI
• 刊名：Clinical Imaging
• 出版年：2017
• 出版时间：January-February 2017
• 年：2017
• 卷：41
• 期：Complete
• 页码：48-52
• 全文大小：799 K
• 卷排序：41

文摘

A 67-year-old male presented with papilledema and back pain localized to the T10 level. Initial workup revealed multifocal spinal ependymoma which was resected and treated with external beam radiotherapy. Nine years after treatment, the patient had a relapse of back pain, and MRI was inconclusive in distinguishing posttreatment radiation necrosis from recurrent tumor. We present the first described report with the utilization of multiparametric positron emission tomography–magnetic resonance imaging and perfusion MRI to distinguish recurrent spinal ependymoma from radiation necrosis.