Case 24: Two-year-old girl with Crouzon syndrome and FGFR ser354cys mutation.
A, Axial CT shows that the JF are not stenotic (asterisks).
B, Magnified, oblique, frontal MIP from 3D TOF MRV (53/6.9/1) reveals a focal stenosis at the junction of the right sigmoid sinus with the internal JV (arrow). There is a large right mastoid EV (arrowheads).