Endocrine Abstracts

A 26-year-old man presented with a 3-month history of polydipsia, polyuria and nocturia. Physical examination was unremarkable. Random blood glucose was 5.1 mmol/l, sodium 147 mmol/l, serum osmolality 297 mOsm/kg, urine osmolality 81 mOsm/kg. A water deprivation test confirmed cranial diabetes insipidus. Magnetic resonance imaging (MRI) of his pituitary gland revealed nodular thickening of the pituitary stalk suggestive of inflammatory or neoplastic aetiology. He also complain...