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Fetal Anomaly Scan: Case Study and Diagnosis at 20 Weeks Gestation

Explore abnormal ultrasonographic findings, likely diagnosis, and differential diagnosis of a 20-week gestation anomaly case. Detailed analysis of RV, LV, RA, and LA with Doppler view. Acknowledgement to Hye-Sung Won, M.D., Department of Obstetrics and Gynecology at University of Ulsan College of Medicine. Rescan at 31 weeks gestation for further evaluation.

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Fetal Anomaly Scan: Case Study and Diagnosis at 20 Weeks Gestation

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  1. HKSUM CME program November 2009 Acknowledgement: Hye-Sung Won M.DDepartment of Obstetrics and Gynecology University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

  2. RA LA RV LV Case Anomaly scan at 20 weeks’ gestation 4 Chamber view FCV Color Doppler PWDoppler RA RV Velocity>2.5m/s

  3. SVC Ao Ao PA PA 3 vessel view Color Doppler 4 Chamber view • Right atrium size: 10.6*14.0mm • Pulmonary artery: • size : 2.5mm, laminar flow • Cordocentesis : normal karyotype RV LV RA

  4. RV LV RA LV RV LA RA 4 Chamber view Color Doppler 3 Vessel view Rescan at 31 weeks’ gestation PA Ao SVC

  5. Questions 1.What are the abnormal ultrasonographic findings? 2. What is the likely diagnosis? 3. What is the differential diagnosis?

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