Endocrine Abstracts

We present the case of a 64 year old woman who presented with one month history of tiredness and 8 kg weight loss. Severe hypokalemia (2.2 mmol/l) was identified by the GP. Clinically she appeared mildly Cushingoid. Biochemical investigations showed a random cortisol significantly elevated at 2170 nmol/l, 24-hour urinary cortisol was 15 700 nmol/l(0−135). ACTH level was elevated at 7400 ng/l(0−40). The low dose dexamethasone suppression test demonstrated failure to...