Peptic Ulcer - Classification

Classification

By Region/Location

• Duodenum (called duodenal ulcer)
• Esophagus (called esophageal ulcer)
• Stomach (called gastric ulcer)
• Meckel's diverticulum (called Meckel's diverticulum ulcer; is very tender with palpation)

Modified Johnson Classification of peptic ulcers:

• Type I: Ulcer along the body of the stomach, most often along the lesser curve at incisura angularis along the locus minoris resistantiae.
• Type II: Ulcer in the body in combination with duodenal ulcers. Associated with acid oversecretion.
• Type III: In the pyloric channel within 3 cm of pylorus. Associated with acid oversecretion.
• Type IV: Proximal gastroesophageal ulcer
• Type V: Can occur throughout the stomach. Associated with chronic NSAID use (such as aspirin).