In histology, how do gastric ulcers differ from erosions?

In histology, how do gastric ulcers differ from erosions?

• A. Ulcers extend through mucosa into submucosa or deeper with granulation tissue at the base.
• B. Erosions extend through the muscularis mucosae into the submucosa.
• C. Ulcers show goblet cell hyperplasia.
• D. Erosions involve the muscularis propria.

Answer: (A)

The main idea is the depth of tissue loss. Gastric ulcers are defects that go beyond the mucosa into the submucosa or deeper, and they characteristically have granulation tissue at the base as they heal. Erosions, on the other hand, are superficial injuries that involve only the surface mucosal epithelium and do not breach the muscularis mucosae or submucosa; they heal by regenerating the epithelium and lack granulation tissue at the base. This depth distinction is what separates ulcers from erosions histologically. The other statements conflict with this pattern: erosions do not reach the submucosa or muscularis propria, and goblet cell hyperplasia is not a defining feature of differentiating ulcers from erosions.

The main idea is the depth of tissue loss. Gastric ulcers are defects that go beyond the mucosa into the submucosa or deeper, and they characteristically have granulation tissue at the base as they heal. Erosions, on the other hand, are superficial injuries that involve only the surface mucosal epithelium and do not breach the muscularis mucosae or submucosa; they heal by regenerating the epithelium and lack granulation tissue at the base. This depth distinction is what separates ulcers from erosions histologically. The other statements conflict with this pattern: erosions do not reach the submucosa or muscularis propria, and goblet cell hyperplasia is not a defining feature of differentiating ulcers from erosions.