Endocrine Abstracts

Rationale: The Aldosterone:Renin ratio (ARR) is commonly used for patients fulfilling screening criteria for primary hyperaldosteronism (PA), followed by confirmatory testing. Reference intervals for interpretation of the ARR vary in accordance with local population and assay 1. While ARR provides high sensitivity for PA, this is compromised by low specificity, further compounded by medication interference. However, additional variables may improve the specificity of ARR as a ...

A 65-year-old man presenting with urinary symptoms was incidentally discovered to have an adrenal mass on imaging. Abdominal computed tomography (CT) revealed a 9.5 x 8 cm heterogenous solid right adrenal tumour with no evidence of metastatic disease. Family history included a brother who died from metastatic carcinoid and another brother who died from metastatic neuroendocrine tumour. The initial differential lay between adrenocortical carcinoma (ACC) or a pheochromocytoma. T...

A 65-year-old man presenting with urinary symptoms was incidentally discovered to have an adrenal mass. Abdominal computed tomography (CT) revealed a 9.5x8cm heterogenous solid right adrenal tumor with no evidence of metastatic disease. The initial differential lay between adrenocortical carcinoma (ACC) or a phaeochromocytoma. The elevated plasma fractionated normetanephrine at 14439 pmol/l (0-1180), metanephrine 15202 pmol/l (0-510), 3-MT 415 pmol/l (0-180) led to a presumed ...