Tissue sampling is a medical procedure used to collect small pieces of tissue from the body for examination. This process helps doctors diagnose diseases, such as cancer, by analyzing the sampled tissue under a microscope. Common methods of tissue sampling include biopsy, where a small section of tissue is removed, and fine needle aspiration, which uses a thin needle to extract cells. The collected tissue samples are sent to a laboratory for testing. Pathologists, specialists in diagnosing diseases, evaluate the samples to identify any abnormalities or diseases. Accurate tissue sampling is crucial for effective treatment planning and patient care.