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Unpleasant sweet taste: a symptom of SIADH caused by lung cancer

Department of Neurology, Saitama Medical School, Saitama, Japan

Correspondence to:
Correspondence to:
Dr Yoshihiko Nakazato
Department of Neurology, Saitama Medical School, 38 Morohongo Moroyama, Iruma-gun, Saitama 350-0495, Japan; nakachan{at}saitama-med.ac.jp

ABSTRACT
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.

Keywords: SIADH; dysgeusia; lung cancer; miraculin