A patient with cushinoid features presents with hemoptysis: he shows no response to dexamethasone supression test; most likely diagnosis here Is
The dexamethasone suppression test (DST) is used to assess adrenal gland function by measuring how coisol levels change in response to an injection of dexamethasone. It is typically used to diagnose Cushing's syndrome. Dexamethasone suppression test measures whether adrenocoicotrophic hormone (ACTH) secretion by the pituitary can be suppressed. An abnormal response or no response to the low-dose test may mean that you have abnormal release of coisol (Cushing syndrome). This could be due to: Tumor in the body that produces ACTH (ectopic cushing syndrome) Ref -<a href=" </ul>
Adrenal hyperplasia
Adrenal adenoma
Ca lung with ectopic ACTH production
Pituitary microadenoma
Endocrinology