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FIG 2. MR images of left JFM obtained in a 48-year-old woman (patient 7).

A, B, Transverse T1-weighted images (500/15).

C, D, Transverse T2-weighted images (4,000/100).

E, F, Transverse postcontrast T1-weighted images (500/15).

MR signal intensity of intracranial component (arrow in A, C, and E) for JFM is higher than that of the extracranial component (arrow in B, D, and F) on T1-, T2-, and postcontrast T1-weighted images.