Cushing Syndrome By Ashley B Grossman, MD, University of Oxford; Fellow, Green-Templeton College Reviewed / Revised May 2022 | Modified Sep 2022 View Patient Education Etiology Symptoms and Signs Diagnosis Treatment Key Points Topic Resources Cushing Syndrome (Moon Facies) Cushing Syndrome (Buffalo... Cushing Syndrome (Striae) Cushing Syndrome Diagnostic Tests in Cushing... Cushing syndrome is a constellation of clinical abnormalities caused by chronic high blood levels of cortisol or related corticosteroids.