A biopsy is essential for confirming a breast cancer diagnosis. Types include fine-needle aspiration, which uses a thin needle to extract tissue or fluid, and a core biopsy, where a larger needle is used. Dr. Gorman at Texas Breast Center also performs lymph node biopsies, including sentinel lymph node biopsies, to check for cancer spread. This aligns with her fellowship training in breast surgical oncology and her commitment to precise, minimally invasive diagnostic methods.