title: Intrathoracic postesophagectomy stomach: the role of chest sonography in pediatric patients.
abstract: OBJECTIVE
  Sonography is a reliable imaging tool, complementary to plain radiography in certain pediatric chest disorders. It can assist in localizing and characterizing mediastinal, pleural, and pulmonary opacities. We have found that sonography is also valuable in elucidating postoperative chest radiography. In this series, our objective was to assess the value of sonography for understanding the radiologic changes in the child after esophagectomy and to highlight its ability to show the intrathoracic stomach.
  
  
  METHODS
  Sonography was performed with a 5- to 12-MHz linear array transducer via anterior, lateral, and posterior intercostal approaches of the abnormal hemithorax in supine, prone, and, when necessary, upright positions.
  
  
  RESULTS
  The distended fluid- or food-filled stomach was identified on sonography as the source of the undefined thoracic opacity on plain radiography in 2 patients.
  
  
  CONCLUSIONS
  The postoperative pediatric chest radiograph is often difficult to understand. Sonography can differentiate between lung consolidation or pleural fluid and a food- or fluid-filled stomach. Simple maneuvers such as postural changes can confirm in the diagnosis.
authors.affiliation: Ultrasound Unit, Department of Diagnostic Imaging, Rambam Medical Center, Haifa, Israel.
authors.forename: Michalle
authors.initials: M
authors.lastname: Soudack
authors.forename: Diana
authors.initials: D
authors.lastname: Gaitini
authors.forename: Lea
authors.initials: L
authors.lastname: Bentur
mesh_terms: D002675:Child, Preschool; D003937:Diagnosis, Differential; D016629:Esophagectomy; D005260:Female; D006801:Humans; D013270:Stomach / Q000000981:diagnostic imaging*; D013896:Thoracic Diseases / Q000000981:diagnostic imaging; D013909:Thorax / Q000000981:diagnostic imaging*; D014463:Ultrasonography