RT Journal Article SR Electronic T1 Dopamine agonist-responsive Cushing’s disease JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr-2018-228045 DO 10.1136/bcr-2018-228045 VO 12 IS 2 A1 Gurpreet Anand A1 Andrea Bink A1 Felix Beuschlein A1 Christoph Schmid YR 2019 UL http://casereports.bmj.com/content/12/2/bcr-2018-228045.abstract AB A 47-year-old Caucasian man was referred to our clinic with a severe clinical and biochemical phenotype of endogenous hypercortisolism for further evaluation and treatment. In addition to confirming adrenocorticotropic hormone (ACTH)-dependent Cushing’s syndrome, we found left temporal hemianopsia, massively increased prolactin, increased growth hormone/insulin-like growth factor 1 values, hypogonadotropic hypogonadism and central hypothyroidism. As the cause of these abnormalities we revealed an invasive macroadenoma of the pituitary secreting ACTH, prolactin and growth hormone, resulting not only in a clinically predominant picture of Cushing’s syndrome but also causing hypogonadotropic hypogonadism and central hypothyroidism. The patient responded surprisingly well to dopamine agonist treatment leading not only to normalisation of prolactin levels but also to clinical and biochemical remission of Cushing’s syndrome. Tumour size decreased successively in follow-up MRI scans. Despite lacking immunohistochemical analysis of tumour tissue, we assume plurihormonal secretion of ACTH, prolactin and growth hormone from pituitary macroadenoma, which fortunately responded well to dopamine agonist treatment.