Fetal oesophagus (normal ultrasound)
G2P1L1. GA - 22 weeks for anomaly scan. No complaints.
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Linear hyperechoic-hypoechoic lines are due to opposed wall of the oesophagus. The thoracic oesophagus is seen up to the gastro-oesophageal junction.
Static images show fetal thoracic collapsed esophagus in a retrocardiac location. In long axis, it is seen as linear echogenic-hypoechoic lines.
During normal peristalsis (dynamic scan) the oesophagus is distended with fluid (not shown).
- The fetal esophagus: anatomical and physiological ultrasonographic characterization using a high-resolution linear transducer G. MALINGER*, A. LEVINE‡ and S. ROTMENSCH† *Prenatal Diagnosis Unit, †Maternal–Fetal Medicine Unit, Department of Obstetrics and Gynecology and ‡Pediatric Gastroenterology Unit, The Edith Wolfson Medical Center, Holon and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel. Ultrasound Obstet Gynecol 2004; 24: 500–505