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- Needle Biopsy: This procedure uses either a fine needle or a core needle to extract cells from your lump. If the lump is fluid-filled and your doctor can remove all the fluid, no further treatment may be needed. If the lump is solid, a number of cells or solid tissue may be removed and evaluated under a microscope to learn if the lump is benign or malignant.
- Open Biopsy: Open biopsy remains the most accurate method of confirming whether a breast change is cancerous. During open biopsy, your doctor removes all or part of your lump for examination under a microscope. The surgery may leave a small scar, but should have little effect on the contour of your breast. Most open biopsies are performed in the hospital on an outpatient basis.
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