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Fig 2. A 44-year-old man with an anaplastic astrocytoma. A, Contrast-enhanced T1-weighted image shows a nonenhancing mass in the right frontal lobe. B, The mass shows increased signal intensity in the T2-weighted image with a focal hypointense area (arrows). C, On the DWI, the mass has relatively homogeneous increased signal intensity. D, The ADC map shows increased ADC with a region of interest placed in the focal area of low ADC within the mass. The lesion area has a minimum ADC of 0.902 x 10–3 mm2 · sec–1.
