A modified radical mastectomy is a procedure that removes the entire breast — including the skin, breast tissue, areola, and nipple — along with most of your underarm lymph nodes. However, your chest muscles are left intact.

The MRM procedure is a standard option for treating breast cancer. Other surgical options include:

  • simple or total mastectomy
  • radical mastectomy
  • partial mastectomy
  • nipple-sparing (subcutaneous mastectomy)
  • skin-sparing mastectomy
  • lumpectomy (breast conservation therapy)