Ampulla of Vater Benign Neoplasm, also known as tumor of the ampulla of vater, is related to obstructive jaundice and villous adenoma. An important gene associated with Ampulla of Vater Benign Neoplasm is SYP (Synaptophysin), and among its related pathways/superpathways is Extracellular vesicle-mediated signaling in recipient cells. Affiliated tissues include lymph node and small intestine.