48,868
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*Abdominal pain. | *Abdominal pain. | ||
*Diarrhea. | *Diarrhea. | ||
Laboratory: | |||
*Serum gastrin often elevated - though not usually not very high.<ref name=pmid17108778>{{Cite journal | last1 = Berna | first1 = MJ. | last2 = Hoffmann | first2 = KM. | last3 = Serrano | first3 = J. | last4 = Gibril | first4 = F. | last5 = Jensen | first5 = RT. | title = Serum gastrin in Zollinger-Ellison syndrome: I. Prospective study of fasting serum gastrin in 309 patients from the National Institutes of Health and comparison with 2229 cases from the literature. | journal = Medicine (Baltimore) | volume = 85 | issue = 6 | pages = 295-330 | month = Nov | year = 2006 | doi = 10.1097/01.md.0000236956.74128.76 | PMID = 17108778 }}</ref> | |||
==Microscopic== | ==Microscopic== |
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