Definition
A gastric smear involves collecting cells from the lining of the stomach and examining them under a microscope. This is often done during an endoscopy, where a thin tube with a camera is inserted into the stomach. It helps detect abnormalities such as Helicobacter pylori infection, gastritis, or stomach cancer. The collected cells are smeared on a slide and stained, allowing pathologists to analyze them for signs of disease. It is crucial for early detection and treatment planning.