Hurthle Cell Neoplasms: A New Differential Diagnosis for 18F-FDOPA-avid Thyroid Nodules?

Journal of Clinical Endocrinology and Metabolism

We report the case of a 54-year-old woman who presented with a 33-mm left adrenal mass on surveillance 7 years after a primary breast cancer. She had no symptoms of catecholamine excess, but the comprehensive hormonal testing identified an elevation of the 24-hour urinary normetanephrine (4950 mmol, upper reference limit [URL], <2200) and metaphrine (7462 mmol, URL <1500) levels as well as serum chromogranin A (120 µg/L, URL <100). Serum calcitonin and other parameters were all in the normal range. The computed tomography (CT)/magnetic …