Esophageal Neuroendocrine Tumor, also known as neuroendocrine tumour of oesophagus, is related to neuroendocrine carcinoma and barrett esophagus. An important gene associated with Esophageal Neuroendocrine Tumor is SYP (Synaptophysin), and among its related pathways/superpathways are GPCR downstream signalling and Class A/1 (Rhodopsin-like receptors). The drugs Capecitabine and Temozolomide have been mentioned in the context of this disorder. Affiliated tissues include pineal, and related phenotypes are growth/size/body region and digestive/alimentary