For most of breast surgery's history, cancer removal and cosmetic outcome were treated as separate and largely competing concerns. The primary goal was to remove the cancer, and whatever the breast looked like afterwards was secondary. Oncoplastic breast surgery changes that entirely.

Oncoplastic surgery integrates the principles of plastic and reconstructive surgery directly into breast cancer operations, planning cancer removal and breast reshaping as a single, unified procedure. The result is that achieving a clear oncological margin and achieving a good aesthetic outcome become simultaneous goals — not a trade-off between them.

At Breast & Surgical Oncology at The Poche Centre, oncoplastic techniques are embedded into our surgical approach for every patient undergoing breast-conserving surgery. All of our specialist breast surgeons have dedicated post-fellowship training in oncoplastic techniques — it is not a special service we offer selectively, but a fundamental part of how we operate. Our team includes nationally recognised educators in oncoplastic skills training, and our published research reflects our commitment to advancing this field.

What Is Oncoplastic Breast Surgery?

Oncoplastic breast surgery describes the application of breast reshaping and reconstruction techniques — drawn from plastic surgery — at the time of cancer removal, within the same operation. Rather than simply excising the tumour and closing the wound, the surgeon actively reshapes and remodels the remaining breast tissue to restore a natural contour and minimise the deformity that would otherwise result from removing a portion of the breast.

The term encompasses a spectrum of techniques ranging from relatively simple volume displacement procedures — rearranging nearby tissue to fill the lumpectomy cavity — through to more complex volume replacement procedures using tissue brought in from outside the breast, such as a small flap from the back or side of the chest wall.

Oncoplastic surgery is not cosmetic surgery performed after cancer treatment. It is cancer surgery performed with cosmetic awareness from the outset, planned as an integrated whole.

Why Oncoplastic Surgery Matters

The benefits of oncoplastic techniques extend well beyond aesthetics, though the aesthetic benefit is real and significant.

Better oncological outcomes

By enabling wider excision of tissue using reshaping techniques that manage the resulting defect simultaneously, oncoplastic surgery allows surgeons to achieve wider, more confident margins around the tumour. A wider margin reduces the risk of residual microscopic disease and lowers local recurrence rates. Studies have shown that oncoplastic breast-conserving surgery achieves lower rates of re-excision and margin involvement compared to standard lumpectomy — without increasing mastectomy rates.

Expansion of breast conservation

Oncoplastic techniques extend the range of patients for whom breast-conserving surgery is oncologically and aesthetically appropriate. Patients who might previously have required mastectomy — because their tumour was large relative to their breast, or located in a cosmetically challenging position — can frequently be offered successful breast conservation when oncoplastic planning is applied.

Better cosmetic outcomes

The most visible benefit. Standard lumpectomy without oncoplastic reshaping commonly leaves a dent, skin puckering, nipple deviation, or significant asymmetry — particularly when the tumour is large, when it is in a central, lower, or inner position, or when radiotherapy further contracts the treated tissue over time. Oncoplastic techniques prevent or substantially reduce these deformities, producing a breast that looks and feels natural after treatment.

Improved quality of life

Body image after breast cancer surgery has a well-documented impact on psychological wellbeing, self-confidence, and overall quality of life. Patients who are satisfied with the cosmetic outcome of their surgery report significantly better quality of life outcomes. Oncoplastic surgery directly and meaningfully contributes to this.

Better delivery of radiotherapy

When breast tissue is well-distributed and symmetrical after oncoplastic reshaping, radiotherapy can be planned and delivered more accurately and effectively, with more uniform coverage of the target tissue and reduced dose to the heart and lungs.

Planning Oncoplastic Surgery

The decision to use oncoplastic techniques — and which techniques to use — is made during surgical planning, before the operation. Every patient scheduled for breast-conserving surgery at our practice has their case considered from an oncoplastic perspective. Not every patient requires complex oncoplastic techniques, but every patient benefits from the planning principle.

Key factors that inform oncoplastic planning include:

Tumour size relative to breast size

The single most important predictor of cosmetic outcome after lumpectomy. A small tumour in a C or D cup breast leaves substantial tissue for reshaping and typically achieves an excellent result with straightforward techniques. A larger tumour in a smaller breast requires more sophisticated planning to avoid significant deformity. When the tumour-to-breast ratio is unfavourable, oncoplastic techniques — or neoadjuvant treatment to shrink the tumour before surgery — may substantially improve what is achievable while maintaining breast conservation.

Tumour location

The position of the tumour within the breast is a major determinant of oncoplastic approach. Tumours in the upper outer quadrant of the breast (where most breast tissue lies) are generally the most straightforward to excise with minimal deformity. Tumours in the lower, central, and inner parts of the breast are more challenging — standard excision frequently results in a concave deformity, skin puckering, or nipple displacement. These locations often particularly benefit from planned oncoplastic reshaping.

Breast density and ptosis

The density and degree of natural ptosis (drooping) of the breast influences which reshaping techniques are applicable and what result is achievable.

Planned radiotherapy

Radiotherapy causes ongoing changes to breast tissue after surgery — contraction, fibrosis, and sometimes significant volume loss — that can worsen a cosmetically suboptimal surgical result over time. Achieving the best possible shape at the time of surgery is especially important in patients who will undergo radiotherapy.

Symmetry with the opposite breast

Where oncoplastic reshaping of the cancer breast results in a significant change in size or shape, a symmetrisation procedure on the opposite breast (reduction, lift, or augmentation) can be planned for the same or a subsequent operation, to achieve the best overall balance.

Oncoplastic Techniques — From Simple to Complex

Oncoplastic surgery encompasses a wide range of techniques. The choice of technique depends on the clinical situation, the volume of tissue removed, the tumour location, and the patient's goals and anatomy.

Volume Displacement Techniques

Volume displacement techniques redistribute the patient's own breast tissue to fill the lumpectomy defect, without importing tissue from elsewhere. They range in complexity from simple cavity closure with suturing of adjacent tissue, through to formal tissue rearrangements modelled on established mammoplasty patterns.

• Simple mobilisation and closure: for small-volume excisions in well-endowed breasts, careful mobilisation and suturing of the surrounding glandular tissue is sufficient to fill the defect and restore contour.
• Therapeutic mammoplasty: one of the most powerful and widely applicable oncoplastic techniques, therapeutic mammoplasty uses the patterns of breast reduction surgery to remove the tumour together with a wider breast volume, reshape the remaining tissue, and reposition the nipple-areola complex — all in one operation. It is particularly well suited to patients with larger or heavier breasts and tumours in the lower pole. It has the additional benefit of reducing any symptoms attributable to large breast size (neck, shoulder, and back pain). Therapeutic mammoplasty using a reduction pattern achieves excellent oncological clearance and consistently good cosmetic outcomes, with the scar pattern of a standard breast reduction.
• Pedicle flaps and local tissue rearrangements: for specific tumour locations, the surrounding breast tissue can be mobilised on a vascular pedicle (a tongue of tissue with its own blood supply) and rotated to fill the defect. These techniques are particularly useful for tumours in the inner, lower, and central breast.

Volume Replacement Techniques

When there is insufficient local breast tissue to adequately fill the lumpectomy defect — typically in smaller-breasted patients or where a larger volume has been removed — tissue from outside the breast can be brought in to provide replacement volume.

• Perforator flaps: lateral intercostal artery perforator (LICAP), anterior intercostal artery perforator (AICAP) and lateral thoracic artery perforator (LTAP) flaps use small islands of skin and fat from the lateral chest wall, supplied by named perforator vessels, to fill lumpectomy defects — particularly in the axillary tail and upper outer quadrant of the breast.
• Fat transfer (lipofilling): injection of the patient's own fat, harvested by liposuction from the abdomen or thighs, can be used to subtly fill a small contour defect or smooth an irregular area at the lumpectomy site. It is most commonly used as a refinement procedure after the initial healing and radiotherapy are complete, rather than at the time of primary surgery.

Symmetrisation of the Opposite Breast

When the oncoplastic procedure on the cancer breast results in a change in breast size or shape — particularly after therapeutic mammoplasty — the opposite breast may require a symmetrisation procedure to restore balance and proportion. This may involve a reduction, a lift (mastopexy), or less commonly an augmentation of the non-cancer breast.

Symmetrisation surgery is a recognised and Medicare-rebatable component of breast cancer treatment when performed to balance the effects of cancer surgery. It can be performed at the same operation as the primary cancer surgery or as a planned second procedure. Our surgeons approach symmetrisation as an integral part of the oncoplastic plan — not an afterthought.

The Timing Principle — Getting It Right First Time

One of the most important principles underpinning oncoplastic surgery is the timing principle: the best opportunity to achieve a good cosmetic outcome is almost always during the initial cancer operation, not afterwards.

Correcting a deformity after surgery — particularly after radiotherapy, which causes fibrosis and contraction of the treated tissue — is significantly more difficult and often produces inferior results compared to preventing the deformity in the first place. This is why oncoplastic planning happens before the operation, not as a response to a suboptimal outcome.

Our surgeons discuss the oncoplastic approach with every patient scheduled for breast-conserving surgery before their operation. The goal is for every patient to leave surgery with a breast they are comfortable with — not to manage a cosmetic problem that could have been anticipated and avoided.

Our Oncoplastic Expertise

Oncoplastic breast surgery requires a specific and demanding combination of skills — the oncological knowledge of a breast surgeon and the reshaping skills of a plastic surgeon — delivered together in a single operation by a single qualified specialist. Not all breast surgeons have dedicated training in oncoplastic techniques, and the quality of planning and execution varies significantly.

At Breast & Surgical Oncology at The Poche Centre, oncoplastic expertise is a defining feature of our practice. All of our surgeons have completed dedicated post-fellowship training in oncoplastic techniques — training that goes well beyond what is provided in standard breast surgical training. All of our surgeons are longstanding national instructors in oncoplastic skills training and are key contributors to developing postgraduate education in this field in Australia. Our practice's surgical outcomes and published research reflect our commitment to achieving the best possible results for every patient.

Is Oncoplastic Surgery Right for Me?

An oncoplastic approach is considered for every patient undergoing breast-conserving surgery at our practice. For many patients, the oncoplastic component is relatively simple — careful planning of the incision, mindful closure of the cavity, and attention to breast contour. For others — particularly those with larger tumours, challenging locations, or unfavourable tumour-to-breast ratios — more complex techniques are planned and applied.

The right oncoplastic approach for you will be discussed fully at your pre-operative consultation. Your surgeon will explain what technique is planned, what the expected aesthetic outcome is, and what the alternative options — including mastectomy with or without reconstruction — look like.

This page is intended as a general guide only and does not replace personalised medical advice. Oncoplastic planning is highly individual and tailored to each patient's specific diagnosis, anatomy, and goals.