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AJNR - American Journal of Neuroradiology

Published ahead of print on November 7, 2007
doi: 10.3174/ajnr.A0801

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Prevalence of Asymmetry of Mamillary Body and Fornix Size on MR Imaging

A. Ozturk^a, D.M. Yousem^a, A. Mahmood^b and S. el Sayed^a

^a Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins Hospital, Baltimore, Md
^b Johns Hopkins University School of Medicine, Kennedy Krieger Institute, Baltimore, Md

View larger version (39K): [in this window] [in a new window]   Fig 1. Asymmetric mamillary bodies. The coronal (B) T1-weighted images (TR/TE/TI, 600/15/1) demonstrate asymmetry of mamillary bodies in a patient with no seizure history.

View larger version (132K): [in this window] [in a new window]   Fig 2. Left mamillary body volume loss. The coronal T1-weighted images (TR/TE/TI, 600/15/1) demonstrate a smaller mamillary body on the left side in a patient with seizures and no hippocampal sclerosis.

View larger version (121K): [in this window] [in a new window]   Fig 3. Mamillary body volume loss and MTS. The axial T2-weighted (TR/TE/TI, 4,000/98/1) image at the level of the mamillary bodies reveals a smaller mamillary body on the side of the hippocampal sclerosis.