RT Journal Article SR Electronic T1 Reversible hyperintensity of the anterior pituitary gland on T1-weighted MR images in a patient receiving temporary parenteral nutrition. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1287 OP 1289 VO 19 IS 7 A1 K Okamoto A1 J Ito A1 T Furusawa A1 K Sakai A1 S Tokiguchi YR 1998 UL http://www.ajnr.org/content/19/7/1287.abstract AB 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.