A 52-year-old man with chronic peptic ulcer disease is found to have elevated fasting serum gastrin (>1000 pg/mL) and gastric pH < 2. Which feature best distinguishes Zollinger-Ellison syndrome (ZES) from simple antral G-cell hyperplasia?

See the options, answer & explanation

Sign in free to reveal the answer choices, the correct answer, the detailed explanation, and AI-powered insights for this question.

Daily MCQs, study tips, and topper strategies on Telegram.