title: Chasing hyponatraemia: unusual presentation.
abstract: Two females, in their sixth decade, presented with recurrent episodes of headache, vertigo, vomiting and altered sensorium. Both patients had persistent hyponatraemia as the only clue. Detailed investigations revealed a pituitary aetiology in both. One patient had a pituitary microadenoma while the other had an empty sella syndrome. The diagnosis and management is discussed and the relevant literature reviewed.
authors.affiliation: Department of Neurology, St. John's Medical College Hospital, Bangalore, India.
authors.forename: M
authors.initials: M
authors.lastname: Tripathi
authors.forename: C C
authors.initials: CC
authors.lastname: Sanjeev
authors.forename: A K
authors.initials: AK
authors.lastname: Roy
mesh_terms: D000236:Adenoma / Q000150:complications*; D000368:Aged; D004652:Empty Sella Syndrome / Q000150:complications*; D005260:Female; D006801:Humans; D007010:Hyponatremia / Q000209:etiology*; D010911:Pituitary Neoplasms / Q000150:complications*