The Most Important Breast Cancer Decision: Remove the Entire Breast or Choose Breast-Conserving Surgery?

Breast cancer patients face a major decision: remove the entire breast or conserve it? What should they know when choosing mastectomy or lumpectomy?

Although removing the whole breast may seem less distressing for an older woman, for women of all ages, the breast is part of sexual identity. Disrupted bodily integrity and wounded sexual identity cause unhappiness at every age, particularly among younger women.

When suspected breast cancer requires a biopsy , excisional biopsy removing all tumor tissue should not be recommended unless necessary. Its cosmetic effects may also influence breast-conservation decisions.

After biopsy diagnosis and imaging (PET-CT, MRI, ultrasound), surgery type is the major decision.

Is There a Survival Difference Between Breast Conservation and Mastectomy?

Shocked and frightened by diagnosis, patients initially consider complete removal safer; public belief agrees. However, research in early cancer has not shown mastectomy to improve survival over partial removal. Recent research shows successful conservation even with large tumors after tumor-reducing chemotherapy.

Who Is Not Suitable for Breast-Conserving Surgery?

1. Patients Unsuitable for Preventive Radiotherapy 
   Irradiating the operated area after conservation significantly reduces same-breast recurrence. Postoperative breast radiotherapy is mandatory for these patients. Radiotherapy may be unsuitable after previous irradiation for another reason or with connective tissue disease. Patients stating “for no reason, my receiving radiotherapy” and “I do not want even the small risks of radiotherapy” should not be offered breast conservation.
2. Patients with Inflammatory Breast Cancer
   Conservation is unsuitable when cancer extensively involves breast skin. Although preoperative chemotherapy and even radiation may help substantially, clearing skin of tumor cells is usually impossible, making complete removal necessary afterward.
3. Cancer in Multiple Breast Areas
   The breast can roughly be divided into four quadrants: lower inner/outer and upper inner/outer. Disease in multiple quadrants generally precludes conservation. Also, if mammography shows widespread microcalcification, considered evidence of extensive cancer, conservation is unsuitable.
4. Breast Cancer During Early Pregnancy
   Conservation is not preferred because postoperative radiotherapy would be delayed.
5. Hereditary Breast Cancer
   Known BRCA 1-2 or other hereditary breast cancer carriers are generally not offered conservation. Most newly diagnosed patients do not know whether their cancer is hereditary.
   Therefore, particularly;
   
   • Age below 35,
   • triple-negative disease,
   • extensive family breast and ovarian cancer history,
   • cancer in both breasts, and
   • previous ovarian cancer diagnosis warrant a hereditary breast cancer gene panel.
   If preoperative chemotherapy is planned, genetic testing during this period clarifies hereditary status before surgery.
6. Patients with Small Breasts
   Small breast volume with large tumors (5 cm or more) may make conservation unsuitable because safe surgical margins may be impossible.
7. Patients with Large Breasts
   Rarely, very large breasts create a wide treatment field making postoperative radiation difficult. Obtain radiation oncology advice beforehand. Cosmetic reduction can also accompany cancer surgery.
8. Repeated Positive Margins After Breast-Conserving Surgery 
   Unexpected findings may arise during surgery or pathology despite imaging. Hidden cancer foci may be found. Rapid intraoperative pathology may suggest clearance, while comprehensive examination finds tumor at the edge: positive surgical margins. If repeated surgeries still show this, complete removal may ultimately be appropriate, though stressful. Discussing these possibilities beforehand prevents disappointment and mistrust. In patients planning conservation after preoperative chemotherapy or chemotherapy- targeted drug combinations, place a marker at the tumor center before treatment in case the tumor becomes invisible afterward: a coil metal clip. It helps the surgeon remove the correct area after preoperative treatment.

Can Cosmetic Appearance Be Preserved When Conservation Is Unsuitable?

If one or more listed reasons preclude conservation, ask whether skin-sparing or even nipple-sparing surgery can preserve appearance. Skin preservation is unsuitable in inflammatory cancer or when an enlarging tumor involves skin.

Conclusion

Today, recovery rates in breast cancer exceed %90. Major contributors are earlier detection through awareness, successful chemotherapy, hormonal therapy and targeted treatment. With improving recovery, quality of life and minimizing physical and emotional injury matter increasingly. Mastectomy can be lifelong trauma. Avoid recommending it unnecessarily, fully explain alternatives and collaborate with plastic surgeons when needed.