Cystic Fibrosis By Beryl J Rosenstein, MD, Johns Hopkins University School of Medicine Reviewed / Revised Aug 2021 | Modified Sep 2022 View Patient Education Etiology Pathophysiology Symptoms and Signs Diagnosis Prognosis Treatment Key Points More Information Topic Resources Cystic Fibrosis: Defective... Cystic Fibrosis (Chest X-Ray) Cystic Fibrosis (X-Ray) Cystic Fibrosis (CT Scan) Cystic fibrosis is an inherited disease of the exocrine glands affecting primarily the gastrointestinal and respiratory systems.