MEDizzy - A 35-year-old man presents with a history of recurrent

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A 35-year-old man presents with a history of recurrent bleeding gastric ulcers refractory to 1 year of intensive medical therapy. (SELECT NEOPLASM)

ExplanationA. Gastrinomas cause the Zollinger-Ellison syndrome with intractable peptic ulcers and very high serum gastrin levels. Although these tumors are uncommon, this diagnosis should be considered in any patient with refractory peptic ulcer disease.