Breast-Conserving Surgery vs Mastectomy: Key Considerations

Two patients may receive the same breast cancer diagnosis but be recommended completely different surgical treatments. One may undergo breast-conserving surgery, while another may be advised to have a mastectomy. This difference is not based on a single factor. Doctors carefully assess tumour features, imaging results, overall health and long-term treatment considerations before deciding which surgical approach may be more appropriate. Understanding these considerations may help patients make more informed decisions about their care.

Factors Doctors Consider Before Recommending Surgery

The decision between breast-conserving surgery and mastectomy is usually based on several medical and personal factors. Doctors assess each patient individually to determine which surgical approach may be more suitable.

Tumour Size and Location

The size of the tumour and whether it is confined to one area of the breast may affect surgical planning. Doctors also assess how close the tumour is to surrounding breast tissue and structures.

Cancer Stage and Extent

Imaging studies such as mammograms, biopsy findings and lymph node involvement may help determine the extent of cancer and guide treatment decisions. In some cases, additional treatments may be recommended before surgery.

Breast Anatomy and Cosmetic Considerations

Breast size and the amount of tissue requiring removal may influence treatment planning. Doctors may also consider the potential cosmetic impact of surgery.

Genetic and Medical Factors

Family history, genetic testing results and previous breast cancer treatments may sometimes affect surgical recommendations and long-term risk management considerations.

Personal Preferences and Treatment Goals

Patients may have different concerns regarding recovery, breast appearance, follow-up care and future cancer risk. Treatment discussions often involve shared decision-making to help patients better understand the available options.

When Breast-Conserving Surgery May Be Recommended

Breast-conserving surgery involves removing the cancerous tumour while preserving as much healthy breast tissue as possible. It may sometimes be considered for patients with early-stage breast cancer or tumours confined to one area of the breast.

Doctors assess whether the tumour can be removed completely while maintaining clear surgical margins and an acceptable cosmetic outcome. Tumour size relative to breast size may also influence suitability.

Radiotherapy is commonly recommended after breast-conserving surgery to help reduce the risk of recurrence within the breast. Depending on the diagnosis, some patients may also require additional treatments such as chemotherapy, hormone therapy or targeted therapy.

For some patients, this approach may help preserve more of the natural breast appearance. However, treatment recommendations vary according to individual medical and personal considerations.

When Mastectomy May Be Recommended

A mastectomy involves removing the entire breast and may sometimes be recommended when breast cancer is more extensive or affects multiple areas of the breast. In some situations, it may also be considered when achieving clear surgical margins through breast-conserving surgery is more difficult.

Several factors may be considered before recommending a mastectomy, including tumour size, cancer location, genetic risk factors and previous breast cancer treatments. Some patients with inherited genetic mutations or a strong family history of breast cancer may also discuss mastectomy as part of long-term risk management.

Depending on the patient’s condition, reconstruction surgery may sometimes be performed at the same time as the mastectomy or at a later stage. Doctors may discuss available reconstruction options, recovery considerations and additional treatments during surgical planning.

For some patients, mastectomy may help address concerns about recurrence risk or reduce the need for further breast surgery. However, treatment decisions are individualised and based on both medical considerations and patient preferences.

Make an Informed Treatment Decision with Specialist Guidance

Breast cancer surgery decisions are based on several medical and personal considerations, and treatment recommendations may differ from one patient to another. Patients with concerns about breast cancer diagnosis or treatment planning may benefit from discussing their options with a qualified breast cancer specialist.

Maven Surgery is a breast cancer clinic in Singapore providing coordinated care for patients undergoing breast cancer diagnosis, surgery and treatment planning. The clinic is helmed by Dr Chong Chee Keong, a dual-fellowship-trained breast and colorectal surgeon with more than 20 years of experience in cancer care and minimally invasive surgical techniques. Consult our specialist if you require guidance on breast cancer screening, mammogram findings or personalised surgical treatment planning.

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