Endocrine Abstracts

A 70 year old female was referred with a putative diagnosis of phaeochromocytoma. She was awaiting hiatus hernia surgery; the diagnosis was based on a history of hypertension and a persistent sinus tachycardia of 110 bpm. Investigations had shown modest elevation of 24 hour normetadrenaline at 4.71 to 4.98 micromol/24 hr (<4.4) on 3 occasions and plasma normetadrenaline of 2398 and 2504 pmol/l (<1180). Review of her medical records confirmed that the onset of tachycard...