Endocrine Abstracts

We present the case of a 34 year old man, previously well, who presented with a 4 week history of worsening headaches and confusion.He was disorientated and confused, but the rest of the examination was largely unremarkable. Admission blood tests revealed him to be profoundly hyponatraemic (serum sodium 100 millimoles per litre, urine sodium 72 millimoles per litre, serum osmolality 202 milliosmoles per kilogram, urinary osmolality 851 millimoles per kil...