A [biopsy](#) is considered the gold standard for cancer diagnosis. It involves removing a small sample of tissue from the suspected area and examining it under a microscope. Types of biopsies include:
- Needle Biopsy: A needle is used to extract tissue or fluid. - Surgical Biopsy: A more invasive procedure where part or all of a tumor is removed. - Endoscopic Biopsy: A thin, flexible tube with a camera is used to take tissue samples from inside the body.
