RT Journal Article
SR Electronic
T1 Persistent high MR signal of the posterior pituitary gland in central diabetes insipidus.
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1749
OP 1752
VO 18
IS 9
A1 M Maghnie
A1 E Genovese
A1 S Bernasconi
A1 S Binda
A1 M Aricò
YR 1997
UL http://www.ajnr.org/content/18/9/1749.abstract
AB We describe three cases of central diabetes insipidus, each with a different pathogenesis, in which unexpected hyperintensity of the posterior pituitary gland was seen on T1-weighted MR images obtained at the time of presentation. In the first case (idiopathic), the posterior pituitary signal persisted more than 10 years; in the second case (Langerhans cell histiocytosis), the signal disappeared within 3 months, despite early specific chemotherapy with etoposide; and in the third case (transient), the posterior signal disappeared within 1 year, but it was documented at the time of spontaneous reversal of polyuria and polydipsia.