A biopsy is the removal and microscopic examination of tissue from a living organism in order to diagnose disease. There are several ways to extract portions of tissue: a cavity scraping, extraction with tweezers, needle puncture, or surgery. The sample is frozen to preserve them, then puts on a slide, and then is analyzed by a microscope (simple or electronic) through chemical reactions or bacterial cultures, a specialist in anatomical pathology. The biopsy is mainly applied in the early diagnosis of cancer to determine the nature of a tumor. It is also used in diseases such as myopathies and neuropathies (nerve disorders and muscle) and chronic infections.
Certain tools allow removal of tissues without resorting to surgery. The main ones are the flexible tubes, suction elements and clippers.
Is perform liver biopsy to determine certain conditions, including cancer, sarcoidosis, miliary tuberculosis and others.