Which histologic finding is associated with intestinal-type gastric adenocarcinoma as a precursor lesion (often with H. pylori infection)?

Which histologic finding is associated with intestinal-type gastric adenocarcinoma as a precursor lesion (often with H. pylori infection)?

• A. Intestinal-type gastric adenocarcinoma
• B. Diffuse-type gastric adenocarcinoma
• C. Gastric MALT lymphoma
• D. Small cell carcinoma of the stomach

Answer: (A)

Intestinal-type gastric adenocarcinoma develops through a sequence driven by chronic gastritis from H. pylori, where the gastric mucosa undergoes intestinal metaplasia (goblet cells appearing in the stomach lining), then dysplasia, and finally carcinoma. The histologic finding that serves as the precursor in this pathway is intestinal metaplasia, reflecting shift toward intestinal-type epithelium. Among the options, the one that best aligns with this intestinal pathway is the intestinal-type gastric adenocarcinoma itself, since it arises via this metaplastic/invasive sequence. The other choices—diffuse-type carcinoma, MALT lymphoma, and small cell carcinoma—represent different diseases or pathways and do not serve as the typical precursor for the intestinal-type route.

Intestinal-type gastric adenocarcinoma develops through a sequence driven by chronic gastritis from H. pylori, where the gastric mucosa undergoes intestinal metaplasia (goblet cells appearing in the stomach lining), then dysplasia, and finally carcinoma. The histologic finding that serves as the precursor in this pathway is intestinal metaplasia, reflecting shift toward intestinal-type epithelium. Among the options, the one that best aligns with this intestinal pathway is the intestinal-type gastric adenocarcinoma itself, since it arises via this metaplastic/invasive sequence. The other choices—diffuse-type carcinoma, MALT lymphoma, and small cell carcinoma—represent different diseases or pathways and do not serve as the typical precursor for the intestinal-type route.