
Diabetes & EndocrinologyBệnh Cushingectopic ACTH secretion
Urinary Free Cortisol Thresholds Sharpen the Differential Diagnosis of ACTH-Dependent Cushing’s Syndrome
By MedXY|May 3, 2026
A Spanish multicenter validation study shows that urinary free cortisol expressed as multiples of the upper limit of normal can meaningfully stratify the likelihood of ectopic ACTH secretion versus Cushing’s disease.