Jean Grey, a 43-year-old married woman, discovered a lump in herbreast during a breast self-examination (BSE). She comes to theWoman's Health Clinic to have her breasts checked. The nursepractitioner examines Jeans breasts and palpates the same lump thatJane discovered.

A biopsy is performed and analysis of the tumor cells indicatesthat Jean does have breast cancer. She and her husband meet withthe surgeon to discuss her treatment options. Jean andher husband, in consultation with the surgeon, agree to alumpectomy. What does this surgical procedureentail?