Hypothermia with loss of consciousness and hyponatraemia E. IncasaM. TampieriA. Zangirolami S. GamberiniV. Di ChiaraB. BoariS. Tartari G. BeneaE. RighiniR. ManfrediniP.A. Modesti

derness. Laboratory data revealed hyponatraemia (sodium 125mEq/l) with normal renal function (creatinine, 1.1 mg/dl), nor-mal blood glucose (87 mg/dl) and hypercholesterolaemia (totalcholesterol, 252 mg/dl). Myxoedema coma was then suspect-ed and the patient was promptly treated with L-thyroxine (vianasogastric tube) and intravenous methyl-prednisolone.Consciousness and valid circulation recovered within 24 h.Magnetic resonance imaging (MRI) showed an emptysella turcica (Fig. 1). Hormonal panel confirmed the clinicalhypothesis of a hypopituitarism: ACTH<5 pg/ml, TSH 0.78µU/ml, FSH 1 mU/ml, LH 0.2 mU/ml, PRL 3.6 ng/ml, ADH