NCIt synonyms : Esophageal NET G1; Esophageal Carcinoid Tumor;
NCIt definition : A rare, well-differentiated, low-grade neoplasm with neuroendocrine differentiation
that arises from the esophagus. The mitotic count is less than 2 per 2 mm2 and the
Ki-67 index is less than 3%. Most cases have a polypoid appearance, are small lesions,
and found incidentally.;