The assessment of gastroesophageal junction morphology is very important in children with reflux disease. Authors present ultrasonographic measurements of subdiaphragmatic part of the esophagus and His angle. In children with reflux disease, marked shortening of subdiaphragmatic part of esophagus and completely obtuse His angle were found. Ultrasound imaging of gastroesophageal junction is valuable part of ultrasound diagnostics of reflux and may be helpful in establishing the etiology and choosing the treatment method.

Keywords: children, ultrasound examination, reflux disease, Gastroesophageal Junction, Gastroesophageal Reflux