Biopsy is a test done for the diagnosis of a breast lump. A biopsy extracts few cells or part of the tissue from the suspicious area in the breast. They are processed and examined under a microscope to determine the diagnosis.

A pathologist examines the samples under the microscope in order to determine the diagnosis. If they are cancerous, the pathologist may need to conduct more tests to find out about the type of cancer. This will help you and your health care professional evaluate and discuss treatmentoptions for you.