title: Reversible hyperintensity of the anterior pituitary gland on T1-weighted MR images in a patient receiving temporary parenteral nutrition.
abstract: 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.
authors.affiliation: Department of Radiology, School of Medicine, Niigata University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Okamoto
authors.forename: J
authors.initials: J
authors.lastname: Ito
authors.forename: T
authors.initials: T
authors.lastname: Furusawa
authors.forename: K
authors.initials: K
authors.lastname: Sakai
authors.forename: S
authors.initials: S
authors.lastname: Tokiguchi
mesh_terms: D000293:Adolescent; D000856:Anorexia Nervosa / Q000628:therapy; D001479:Basal Ganglia / Q000473:pathology; D001933:Brain Stem / Q000473:pathology; D005260:Female; D006801:Humans; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D010289:Parenteral Nutrition, Total; D010903:Pituitary Gland, Anterior / Q000473:pathology*; D013997:Time Factors