Monarch Disease Ontology id MONDO_0020528 (ACTH-dependent Cushing syndrome) is a group of endogenous Cushing syndrome caused by abnormal production of ACTH due to pituitary adenoma or an extrapituitary tumor. Also known as: ACTH-dependent CS, adrenocorticotropic hormone-dependent Cushing syndrome, corticotropin-dependent Cushing syndrome, overproduction of ACTH, pituitary-dependent Cushing disease, pituitary-dependent Cushing's disease.