VIPoma history and symptoms: Difference between revisions
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Revision as of 14:33, 30 August 2015
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
History and Symptoms
The Major clinical features are prolonged watery diarrhea (fasting stool volume > 750 to 1000 mL/day)and symptoms of hypokalemia and dehydration. Half of the patients have relatively constant diarrhea while the rest have alternating periods of severe and moderate diarrhea. One third have diarrhea < 1yr before diagnosis ,but in 25%, diarrhea is present for 5 yr or more before diagnosis. Lethargy, muscle weakness, nausea, vomiting and crampy abdominal pain are frequent symptoms. Hyperkalemia and impaired glucose tolerance occur in < 50% of patients. During attacks of diarrhea, flushing similar to the carcinoid syndrome occur rarely.