Endocrine Abstracts

Primary pigmented nodular adrenocortical disease (PPNAD) is a rare cause of ACTH independent adrenal Cushing’s syndrome. A 32-year-old female with atrial myxomas was found to have Carney’s complex (PRKAR1A mutation negative). Screening showed biochemical Cushing’s syndrome (24 h urine free cortisol 918 nmol – nr 100–400) and the characteristic paradoxical increase in UFC during the 48 h dexamethasone suppression test was confirmed: 24 h UFC pre-dex 340...