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A 74-year-old man with a high-grade glioma. T1 spin-echo images (1.5T) after administration of 0.1 mmol/kg of gadoterate meglumine (A) and gadobutrol (B) show an approximate 30-mm mass. The time between the 2 MR imaging examinations was 8 days. Lesion visualization and characterization were scored as excellent by all 3 blinded readers. The mass is clearly seen on both examinations and shows no difference in contrast enhancement.
