1. Persistent high MR signal of the posterior pituitary gland in central diabetes insipidus
- Author
-
Maghnie, M., Genovese, E., Bernasconi, S., Binda, S., and Maurizio Arico'
- Subjects
Male ,Adolescent ,diagnosis ,Case Reports ,Posterior ,magnetic resonance ,Pituitary Gland, Posterior ,Pituitary Gland, Anterior ,Humans ,Langerhans-Cell ,Child ,Preschool ,Anterior ,pituitary gland ,Adolescent, Child, Child ,Preschool, Diabetes Insipidus ,diagnosis/etiology, Female, Follow-Up Studies, Histiocytosis ,diagnosis, Humans, Infant, Magnetic Resonance Imaging, Male, Pituitary Gland ,pathology, Pituitary Gland ,pathology, Water-Electrolyte Balance ,physiology ,Infant ,diagnosis/etiology ,Water-Electrolyte Balance ,Magnetic Resonance Imaging ,Histiocytosis, Langerhans-Cell ,diabetes insipidus ,Child, Preschool ,Pituitary Gland ,histiocytosis ,Female ,pathology ,Histiocytosis ,Diabetes Insipidus ,Follow-Up Studies - Abstract
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.
- Published
- 1997