NCIt related terms : ESOPHAGUS, LOWER THIRD; Esophageal; Distal; Lower third of esophagus; Lower Third; lower esophagus;
NCIt definition : The lower one third of the esophagus in which the muscle layer is composed of muscle
cells predominantly of the smooth type.;
Alternative definition : CDISC: The lower one third of the esophagus in which the muscle layer is composed
of muscle cells predominantly of the smooth type. (NCI);