A VIPoma (also known as Verner Morrison syndrome after the physicians who first described it) is a rare (1 per 10000000 per year) endocrine tumor usually (about 90%) originating from non-β islet cell of the pancreas that produce vasoactive intestinal peptide (VIP).
This page contains content from the copyrighted Wikipedia article "VIPoma"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.