Advanced

AJNR - American Journal of Neuroradiology

Published ahead of print on April 16, 2008
doi: 10.3174/ajnr.A1093

This Article Abstract Full Text Full Text (PDF) Supplemental Online Table Alert me when this article is cited Alert me if a correction is posted Citation Map Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Leach, J.L. Articles by Tomsick, T.A. Search for Related Content PubMed PubMed Citation Articles by Leach, J.L. Articles by Tomsick, T.A.

Large Arachnoid Granulations Involving the Dorsal Superior Sagittal Sinus: Findings on MR Imaging and MR Venography

J.L. Leach^a,b,c, K. Meyer^a, B.V. Jones^a,b and T.A. Tomsick^a,c

^a Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, Ohio
^b Department of Radiology and Medical Imaging, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
^c The Neuroscience Institute, Cincinnati, Ohio

View larger version (92K): [in this window] [in a new window]   Fig 1. Sagittal images from cases 1, 2, 3, 4, 6, and 7 demonstrating the typical position of the dorsal SSS AG identified in this study (arrows). Case 3, Sagittal reconstruction of FSPGR postcontrast T1-weighted image (3T); case 6, sagittal reconstructed image from 2-mm axial FSE T2-WI (3T); all others, sagittal FSE T2-weighted images.

View larger version (109K): [in this window] [in a new window]   Fig 2. Case 4, 1.5T, axial T1WI (A), FLAIR (B), T2WI (C), DWI (D), and postcontrast T1WI (E and F). Typical appearance on multiple pulse sequences. Note the large AG with associated defect in the dura (arrows, C) along the rightward margin of the SSS. Note intrinsic vessels, which appear to be displaced cortical veins or channels (arrows, E and F). There is focal calvarial remodeling.

View larger version (28K): [in this window] [in a new window]   Fig 3. Case 3, 3T. Axial acquired TOF-MRV (A), CE-MRV (B), and segmented volume-rendered FSPGR sequence after contrast (C).Note multilumen SSS, intrinsic vessels (arrows, B and C), thin AG base along the SSS (arrowhead, C), and adjacent cortical vein (*C).