American Journal of Neuroradiology, Vol 18, Issue 3 482-484, Copyright © 1997 by American Society of Neuroradiology
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Large vestibular aqueduct syndrome with high CT density and high MR signal intensity
K Okamoto, J Ito, T Furusawa, K Sakai and S Tokiguchi
Department of Radiology, School of Medicine, Niigata University, Japan.
We report a case of large vestibular aqueduct syndrome with a markedly dilated endolymphatic sac bilaterally. The density and signal intensity of the extraosseous portion of the sac were higher than those of cerebrospinal fluid on CT and MR studies. The findings may represent protein-rich and hyperosmolar fluid within the endolymphatic sac.
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