Gastric Carcinoma at 20x Magnification

Gastric carcinomas are malignant growths that arise from the stomach’s epithelial cells. Most gastric carcinomas can be more specifically described as adenocarcinomas since the tumors typically originate in the glandular epithelium that lines the inside of the stomach. In fact, as many as 95 percent of all primary stomach cancers are adenocarcinomas. Other types of malignant gastric tumors include, however, squamous cell and adenosquamous carcinomas, lymphomas, carcinoids, and leiomyosarcomas. In the United States, approximately 24,000 people are diagnosed with gastric carcinoma or other form of stomach cancer each year.