HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY
Stomach cancer. Light micrograph of a section through the stomach of a patient with stomach cancer. This is an adenocarcinoma, a cancer that arises from glandular tissue, the most common type of stomach cancer. It is most common in men over 55. The main risk factors for stomach cancer are a diet high in salt, infection with the bacteria Helicobacter pylori, and smoking. Symptoms include indigestion, pain, difficulty swallowing and nausea or vomiting. Treatment is with surgery to remove the tumour, combined with chemotherapy. Haematoxylin and eosin stain. Magnification: x25 when printed at 10 centimetres wide.
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