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Imaging characteristics of a pseudotumor in a 45-year-old woman. Note a rim-enhancing lesion of 30 mm, craniolateral to the left frontal horn, with multiple dotlike susceptibility artifacts and diffusion restriction in the center of the lesion with extensive surrounding vasogenic edema with mass effect (A, FLAIR. B, 3DT1 Gd. C, SWI. D, DWI).
