What is the role of MRI with gadolinium enhancement in the workup of Sturge-Weber syndrome (SWS)?

Updated: Dec 26, 2018
  • Author: Masanori Takeoka, MD; Chief Editor: George I Jallo, MD  more...
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Although MRI does not show calcifications, gadolinium enhancement may show pial angioma; therefore, MRI may permit early diagnosis of SWS, even in newborns with a facial PWS. [62] Sugama et al reported that the most characteristic finding of SWS on MRI with gadolinium is enhancement of leptomeningeal angiomas (LAs). [63] LAs may be seen that did not appear on CT or angiographic images. MRI with gadolinium may also delineate the extent of the LA. Fischbein, however, reported that gadolinium enhancement may not be seen in every case. [64]

Hu et al reported that MR susceptibility-weighted imaging (SWI) may complement gadolinium-enhanced, T1-weighted MRI in characterizing abnormalities in SWS. [65]

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