Endocrine Abstracts

Background: Phaeochromocytomas (PC) are rare tumours of chromaffin cells which may present with relatively common and non-specific symptomatology. The optimal biochemical investigation to confirm or refute the diagnosis remains unclear; some centres use fractionated plasma metanephrines, which are very sensitive but lack specificity, while others use conventional measurements of urinary metanephrines, which may be affected by concurrent drug administration and are less sensiti...