Gastric ulcer vs Duodenal ulcer
How to tell Gastric ulcer and Duodenal ulcer apart when a board question makes them look alike.
Gastric ulcer: pain worsens with food and weight drops; duodenal ulcer: pain eases with food and wakes the patient when the stomach is empty.
Side by side
Epigastric pain that worsens with meals and may cause early satiety or weight loss.
Epigastric pain that improves with meals and returns hours later or at night.
Mucosal injury in the stomach, often from impaired defenses or chronic inflammation.
Acid exposure injures duodenal mucosa, often in the setting of increased acid load.
Gastric ulcers require biopsy or follow-up evaluation to exclude malignancy.
Duodenal ulcers are rarely malignant; posterior erosion can injure the gastroduodenal artery.
The trap
Both are peptic ulcers, but they sit on opposite sides of the H pylori prevalence and malignancy spectrum. Duodenal ulcers are over 95 percent H pylori-driven and almost never malignant; gastric ulcers are a mix of H pylori and NSAID and every gastric ulcer needs biopsy plus follow-up endoscopy to exclude gastric adenocarcinoma. The bleeding traps: posterior duodenal ulcers erode into the gastroduodenal artery (massive hematemesis); posterior gastric ulcers can erode into the splenic artery.
Watch it explained
The repair move
Use the meal pattern for recognition, then remember gastric ulcer needs malignancy exclusion.
Try a free question
CoreA patient has epigastric pain that worsens shortly after eating and is associated with early satiety and weight loss. Which ulcer location is most likely?
Show answer and explanation
Answer: A. Gastric ulcer. Board-style gastric ulcer pain classically worsens with meals and requires malignancy exclusion.
Why the other choices are tempting
- B. Duodenal ulcer pain classically improves with meals and returns later.
- C. Mallory-Weiss tear causes mucosal bleeding after retching.
- D. Boerhaave syndrome causes transmural rupture after vomiting.
- E. Esophageal varices cause upper GI bleeding in portal hypertension.
Flashcards
Tap a card to flip it.
What meal pattern favors a duodenal ulcer?
Pain improves after eating, then returns hours later or at night as acid reaches the duodenum again.
Why does a gastric ulcer need biopsy or follow-up evaluation?
A gastric ulcer can hide malignancy, so the safety move is to confirm healing or sample suspicious lesions.
Quick answers
What is the fastest way to tell Gastric ulcer from Duodenal ulcer?
Gastric ulcer: pain worsens with food and weight drops; duodenal ulcer: pain eases with food and wakes the patient when the stomach is empty.
What is the key clue for Gastric ulcer?
Epigastric pain that worsens with meals and may cause early satiety or weight loss.
What is the key clue for Duodenal ulcer?
Epigastric pain that improves with meals and returns hours later or at night.
What is the common trap with Gastric ulcer vs Duodenal ulcer?
Both are peptic ulcers, but they sit on opposite sides of the H pylori prevalence and malignancy spectrum. Duodenal ulcers are over 95 percent H pylori-driven and almost never malignant; gastric ulcers are a mix of H pylori and NSAID and every gastric ulcer needs biopsy plus follow-up endoscopy to exclude gastric adenocarcinoma. The bleeding traps: posterior duodenal ulcers erode into the gastroduodenal artery (massive hematemesis); posterior gastric ulcers can erode into the splenic artery.