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Unpleasant sweet taste: a symptom of SIADH caused by lung cancer
  1. Y Nakazato,
  2. K Imai,
  3. T Abe,
  4. N Tamura,
  5. K Shimazu
  1. Department of Neurology, Saitama Medical School, Saitama, Japan
  1. Correspondence to:
 Dr Yoshihiko Nakazato
 Department of Neurology, Saitama Medical School, 38 Morohongo Moroyama, Iruma-gun, Saitama 350-0495, Japan; nakachan{at}


A 56 year old woman with large cell lung carcinoma complained of an unpleasant sweet taste (dysgeusia). She developed hyponatraemia caused by the syndrome of inappropriate antidiuretic hormone secretion (SIADH). Dysgeusia disappeared when serum sodium normalised and recurred when hyponatraemia relapsed. Dysgeusia was the initial and only symptom of SIADH in this case.

  • SIADH, syndrome of inappropriate secretion of antidiuretic hormone
  • dysgeusia
  • lung cancer
  • miraculin

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  • Competing interests: none declared