Type I gastric ulcers are located in the gastric body, usually along the lesser curvature. Which of the following statements correctly characterize type I gastric ulcers?

a. Normal to low acid secretion

c. High frequency of blood group A

Gastric ulcers are divided into categories based on their location and gastric acid secretory status. A type I gastric ulcer is an ulcer in the body of the stomach, usually along the lesser curvature, associated with large volumes of secretion with a low to normal acid output. Type I ulcers are not associated with duodenal, pyloric, or prepyloric mucosal abnormalities. There is a slight predominance of patients with blood group A in this type of gastric ulcer.

Type II gastric ulcer is located in the body of the stomach in combination with a duodenal ulcer. These patients are usually acid hypersecretors. About 23% to 25% of gastric ulcers are type II. A type III gastric ulcer is characterized as a prepyloric ulcer and accounts for about 23% of lesions. Patients with this lesion are typically acid hypersecretors. Type IV gastric ulcer occur high on the lesser curvature near the gastroesophageal junction. In the United States, the incidence of type IV gastric ulcer is less than 10%.