title: The retrotracheal triangle in pediatric patients.
abstract: The retrotracheal triangle is the posterior superior mediastinum and usually is well outlined on the routine lateral chest roentgenogram. It has characteristic features, and careful evaluation of this area on routine roentgenogram will be of assistance in identifying abnormalities producing respiratory or feeding difficulties in infants and children. Anomalies occurring in this area include vascular structures, esophageal lesions, tumor masses, and inflammatory lesions.
mesh_terms: D001015:Aortic Arch Syndromes / Q000000981:diagnostic imaging; D002648:Child; D004933:Esophageal Atresia / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008476:Mediastinal Cyst / Q000000981:diagnostic imaging; D008477:Mediastinal Diseases / Q000000981:diagnostic imaging*; D008482:Mediastinum / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic