title: Postirradiation hypopituitarism presenting as severe hyponatremia.
authors.forename: K S
authors.initials: KS
authors.lastname: Lam
authors.forename: A W
authors.initials: AW
authors.lastname: Kung
authors.forename: R T
authors.initials: RT
authors.lastname: Young
mesh_terms: D006801:Humans; D007010:Hyponatremia / Q000209:etiology*; D007018:Hypopituitarism / Q000150:complications / Q000175:diagnosis* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D011878:Radiotherapy / Q000009:adverse effects*