What is biopsy?

A biopsy is a medical procedure that involves taking a sample of tissue or cells from the body for examination. This examination is typically done under a microscope by a pathologist, a doctor who specializes in diagnosing diseases by examining tissues and fluids.

Here's a breakdown of key aspects:

 * Purpose:

   * The primary purpose of a biopsy is to determine the presence and extent of a disease, particularly cancer.

   * It's also used to diagnose other conditions, such as infections, inflammatory diseases, and other abnormalities.

 * Types:

   * There are various types of biopsies, depending on the location and nature of the tissue sample needed. Common types include:

     * Needle biopsy: A needle is used to extract tissue or fluid.

     * Excisional biopsy: The entire abnormal area or lump is removed.

     * Incisional biopsy: Only a portion of the abnormal tissue is removed.

     * Skin biopsy: A sample of skin is removed.

 * Process:

   * The procedure varies depending on the type of biopsy.

   * It may involve local or general anesthesia.

   * The tissue sample is then sent to a laboratory for analysis.

 * Importance:

   * Biopsies are crucial for accurate diagnosis and treatment planning.

   * They provide definitive information that other diagnostic methods, such as imaging, may not be able to provide.

In essence, a biopsy is a vital diagnostic tool that helps doctors understand what's happening inside the body.