title: A case of hyponatremia caused by central hypocortisolism.
abstract: BACKGROUND
  A 43-year-old woman was referred to the Psychiatric Unit of the University of Florence Hospital, 1 year after the development of a clinical picture characterized by nausea, hyporexia, muscle weakness, insomnia, weight loss, amenorrhea and severe depression. These clinical manifestations had started 2 months after delivery of her first child. Initial laboratory investigations revealed hypoglycemia and hyponatremia. The patient was, therefore, transferred to the Endocrine Unit of the same hospital for further evaluation of the case.
  
  
  METHODS
  Physical examination to evaluate extracellular volume status, standard laboratory investigations, and evaluation of plasma and urinary osmolality and urinary sodium excretion. Basal and dynamic evaluation of anterior pituitary function and a pituitary MRI were also performed.
  
  
  METHODS
  Hyponatremia caused by central hypocortisolism (isolated adrenocorticotropic hormone deficit).
  
  
  RESULTS
  Glucocorticoid therapy (25 mg cortisone acetate tablets, 1.5 tablets per day).
authors: Department of Clinical Physiopathology, University of Florence, Florence, Italy.
authors: Gabriele
authors: G
authors: Parenti
authors: Valdo
authors: V
authors: Ricca
authors: Alessia
authors: A
authors: Zogheri
authors: Mario
authors: M
authors: Serio
authors: Massimo
authors: M
authors: Mannelli
authors: Alessandro
authors: A
authors: Peri
mesh_terms: D000328:Adult; D000465:Algorithms; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000172:deficiency*; D007010:Hyponatremia / Q000097:blood / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D011388:Prolactin / Q000097:blood; D013972:Thyrotropin / Q000097:blood
chemical_list: D011388:Prolactin; D013972:Thyrotropin; D006854:Hydrocortisone