Gastrointestinal Neuroendocrine Tumor, also known as malignant gastrointestinal neuroendocrine tumour, is related to ectopic cushing syndrome and hyperparathyroidism. An important gene associated with Gastrointestinal Neuroendocrine Tumor is SST (Somatostatin), and among its related pathways/superpathways are Class A/1 (Rhodopsin-like receptors) and Signal Transduction. The drugs Lutetium Lu 177 dotatate and Copper have been mentioned in the context of this disorder. Affiliated tissues include pancreas and colon, and related phenotype is behavior/neurological.