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A 52-years-old female with hypertension presented with headache. FLAIR (A,E), T2WI (B,F), and ADC maps (D,H) showed hyperintensity predominantly in the brainstem accompanied by periventricular white matter. No obvious abnormality on DWI (C,G). After 11 days of follow-up, the abnormal signals (I–L) markedly resolved. ADC, apparent diffusion coefficient; DWI, diffusion-weighted imaging; FLAIR, fluid-attenuated inversion recovery; T2WI, T2-weighted imaging.
