title: [Magnetic resonance in familial central diabetes insipidus: a family study].
abstract: OBJECTIVE
  To evaluate through MR the presence or absence of the normal hyper-intense signal of the posterior pituitary lobe in four patients diagnosed of familial central diabetes insipidus.
  
  
  METHODS
  The posterior pituitary lobe was studied by magnetic resonance imaging in four patients, three children and one adult, diagnosed of familiar central diabetes insipidus.
  
  
  RESULTS
  In none of the four patients could the normal posterior bright signal be detected.
  
  
  CONCLUSIONS
  The normal hyper-intense MR image of the neurohypophysis is suggested to reflect its function and its absence is frequent in patients diagnosed of familial central diabetes insipidus.
authors.affiliation: Servicio de Pediatría, Hospital Santiago Apóstol, Vitoria.
authors.forename: M
authors.initials: M
authors.lastname: Bastida Eizaguirre
authors.forename: A
authors.initials: A
authors.lastname: Merino Jovellanos
authors.forename: M J
authors.initials: MJ
authors.lastname: Arto Urzainqui
authors.forename: R
authors.initials: R
authors.lastname: Iturbe Ortiz de Urbina
authors.forename: R
authors.initials: R
authors.lastname: Ezquerra Larreina
mesh_terms: D000328:Adult; D002648:Child; D003919:Diabetes Insipidus / Q000175:diagnosis* / Q000235:genetics; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010375:Pedigree; D010904:Pituitary Gland, Posterior / Q000473:pathology