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American Journal of Neuroradiology, Vol 19, Issue 7 1287-1289, Copyright © 1998 by American Society of Neuroradiology

ARTICLES

Reversible hyperintensity of the anterior pituitary gland on T1- weighted MR images in a patient receiving temporary parenteral nutrition

K Okamoto, J Ito, T Furusawa, K Sakai and S Tokiguchi
Department of Radiology, School of Medicine, Niigata University, Japan.

We report a patient with severe anorexia nervosa, treated with temporary total parenteral nutrition (TPN), in whom reversible hyperintensity of the anterior pituitary gland was seen on T1-weighted MR images. The anterior pituitary was isointense with white matter before TPN therapy and became markedly hyperintense after 3 months of treatment. The intensity normalized after TPN therapy was discontinued. The transient hyperintensity was also seen in the basal ganglia and dorsal brain stem. We believe the hyperintensity of the anterior pituitary may be attributed to the TPN therapy.




Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X