biopsíu

Biopsíu is a medical procedure used to obtain a sample of tissue from the body for examination under a microscope. This examination is typically performed by a pathologist to diagnose diseases, particularly cancer, or to assess the extent of damage in various organs. The tissue sample can be obtained through several methods, including aspiration, where a needle is used to draw out fluid or cells, or excision, where a piece of tissue is surgically removed. Incisional biopsies involve removing a portion of a suspicious lesion, while excisional biopsies remove the entire abnormal area.

The decision to perform a biopsy is usually based on imaging studies or physical examination findings that suggest an abnormality. The procedure is performed under local anesthesia in most cases, though general anesthesia may be used for more extensive biopsies. After the sample is collected, it is sent to a laboratory for processing and analysis. The pathologist examines the cells and tissue structure for any signs of disease, such as inflammation, infection, or malignancy. The results of the biopsy are crucial for determining the appropriate course of treatment for the patient. Biopsies are a fundamental diagnostic tool in modern medicine, providing definitive information that guides clinical decision-making.