Multimodality Evaluation of Fetal Congenital Diaphragmatic Hernia and its Mimics SA–CME INFORMATION Description A variety of intrathoracic masses may present in the fetus and present as a mimic to congenital diaphragmatic hernia. Knowledge of their locations, ultrasound characteristics, and MRI findings helps limiting the differential diagnosis and guiding treatment. Jointly provided by IAME and Anderson Publishing Inc., this activity is designed to educate radiologists about fetal intrathoracic masses and distinguishing imaging features that will help in guiding management. Knowledge of the ultrasound and MRI features of these masses will help in differentiate these masses from congenital diaphragmatic hernia. Once this diagnosis can be made ultrasound and MRI may also be used to predict residual pulmonary tissue and other findings, such as liver herniating into the thorax, which will help guide fetal and neonatal therapy. Learning Objectives Upon completing this activity, the reader should be able to: • Identify some of the common fetal chest masses and their typical ultrasound features. • Describe characteristic imaging features of different fetal chest masses on ultrasound and MRI imaging • Explain some of the ultrasound and MRI features that may be helpful in predicting fetal and neonatal therapy and ultimate outcome. Target Audience • Radiologists • Related Imaging Professionals Authors Ana Mitchell, MD; Simran Sekhon, MD; Kriti Gwal, MD; John McGahan, MD Affiliation: Department of Radiology, University of California Davis Health, Sacramento, California. Commercial Support None Accreditation/ Designation Statement This activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint providership of IAME and Anderson Publishing. IAME is accredited by the ACCME to provide continuing medical education for physicians. IAME designates this enduring material for a maximum of 1 AMA PRA Category 1 Credits ™. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Instructions This activity is designed to be completed within the designated time period. To successfully earn credit, participants must complete the activity during the valid credit period. To receive SA–CME credit, you must: 1. Review this article in its entirety. 2. Visit www.appliedradiology.org/SAM2. 3. Log into your account or create an account (new users). 4. Complete the post-test and review the discussion and references. 5. Complete the evaluation. 6. Print your certificate. Estimated time for completion: 1 hour Date of review: Oct. 9, 2024 Expiration date: Oct. 31, 2025 Disclosures Planner: Erin Simon Schwartz, MD, FACR, discloses no relevant financial relationships with any ineligible companies. Authors: Ana Mitchell, MD, discloses no relevant financial relationships with ineligible companies. Simran Sekhon, MD, discloses no relevant financial relationships with ineligible companies. Kriti Gwal, MD, discloses no relevant financial relationships with ineligible companies. John McGahan, MD, discloses no relevant financial relationships with ineligible companies. IAME has assessed conflict of interest with its faculty, authors, editors, and any individuals who were in a position to control the content of this CME activity. Any identified relevant conflicts of interest have been mitigated. IAME’s planners, content reviewers, and editorial staff disclose no relationships with ineligible entities. relationships with ineligible entities. Applied Radiology 6 November / December 2022