<prompt> All of the following are are features of VIPoma, except:HypokalemiaHypochlorhydriaFlushingHypocalcemia  <response>: The principal symptoms are large-volume diarrhea severe enough to cause hypokalemia, dehydration, hypochlorhydria, and flushing. Patients frequently have hyperglycemia and hypercalcemia. Ref: Harrisons Principles of Internal Medicine, 18th Edition, Page 3068. 