Vol.1 No.2 (September 2011)
Radiation-Induced Delayed Extensive Brain Hyperintensity Lesions on MR Imaging: A Case Report
Background: treatment with radiation therapy for cranial tumors can cause focal and diffuse cere-bral white matter injury. However, the literature rarely describes a radiation-induced delayed extensive cere-bral injury. Our objective was to report a rare case that had a delayed extensive hyperintensity injury in brain on MRI after radiation therapy due to nasopharyngeal cancer. Methods: a MRI was performed on a 40-year-old patient with extensive brain damage who had the radiation therapy two years ago.MRI results were analyzed visually. Results: on MRI, T2-weighted MRI showed an extensive hyperintensity after treated by irradiation. The radiographic pattern of extensive cerebral injury is relatively distinct. It involves the white matter and gray matter in cerebral, cerebellum, medulla oblongata, pons, intrnal capsule and thalamus bilaterally. Conclusions: our observations demonstrate that the extensive hyperintensity lesions in brain on MRI after radiation therapy are a rare radioactive delayed encephalopathy.
周业庭 , 童道明 (2011) 放射诱导迟发性广泛性脑MRI高信号损害一例报告。 临床医学进展， 1， 27-29. doi: 10.12677/acm.2011.12006
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