Small Intestinal Enterochromaffin Cell Serotonin-Producing Neuroendocrine Tumor

**Semantic type:** Neoplastic Process

**Definition:** A well-differentiated neuroendocrine tumor that arises from the small intestine and produces serotonin.

**Synonyms:** - Small Intestinal EC-Cell Serotonin-Producing NET - Small Intestinal EC-Cell Serotonin-Producing Neuroendocrine Tumor - Small Intestinal Enterochromaffin Cell (EC-Cell), Serotonin-Producing Neuroendocrine Tumor - Small Intestinal Enterochromaffin Cell, Serotonin-Producing Neuroendocrine Tumor