Paget’s Disease of the Breast Treatment: Breast-Conserving Surgery vs Mastectomy

Paget’s disease of the breast treatment does not automatically require removal of the entire breast. Some patients can be treated with breast-conserving surgery followed by radiotherapy, while others need a mastectomy because of cancer extending deeper or more widely inside the breast.

The correct operation is determined by more than the visible change on the nipple. Doctors consider the nipple biopsy, breast imaging, the presence and extent of ductal carcinoma in situ (DCIS) or invasive cancer, surgical margins, lymph nodes, breast size, access to radiotherapy and the patient’s preferences.

The purpose of treatment is to remove all known cancer while selecting an operation that is medically appropriate and acceptable to the patient.

Important: This article provides general education. An individual treatment recommendation requires examination, imaging, pathology review and discussion with a qualified breast cancer team.

What does a diagnosis of Paget’s disease mean?

Paget’s disease of the breast is a rare form of cancer involving the nipple and usually the areola, which is the darker skin surrounding the nipple. It can look similar to eczema, allergy or infection.

The important treatment question is whether abnormal cells are limited to the nipple region or connected to cancer deeper inside the breast. According to the National Cancer Institute, Paget’s disease may be associated with DCIS or invasive breast cancer. Treatment therefore depends heavily on what is found inside the breast.

If you are still at the symptom-evaluation stage, read about persistent nipple skin changes and why they should not be repeatedly treated without a proper diagnosis.

What should be checked before choosing surgery?

A nipple biopsy can confirm Paget’s disease, but it does not always show the full extent of disease inside the breast. Treatment planning may include:

Clinical breast and lymph-node examination

The surgeon examines both breasts, the nipple–areola complex and lymph nodes in the armpit and nearby areas. The presence or absence of a lump can influence the investigation, but not feeling a lump does not exclude underlying cancer.

Breast imaging

Depending on the patient, imaging may include:

  • Diagnostic mammography
  • Breast ultrasound
  • MRI in selected cases
  • Imaging or needle biopsy of suspicious lymph nodes

MRI is not necessary for every patient. It may be useful when mammography and ultrasound do not adequately explain the biopsy result or when the extent of disease remains uncertain.

Biopsy of abnormalities inside the breast

Any suspicious mass, calcification or abnormal area may require a separate core-needle biopsy. This helps determine whether there is DCIS or invasive breast cancer and whether disease is present in one location or several parts of the breast.

Complete pathology information

Doctors may need to know:

  • Whether cancer is in situ or invasive
  • The size and distribution of the abnormal area
  • Tumour grade
  • Whether surgical margins can reasonably be cleared
  • Estrogen receptor and progesterone receptor status
  • HER2 status
  • Other tumour characteristics relevant to treatment

Hormone-receptor and HER2 results help guide treatment when an underlying invasive cancer is found. The National Cancer Institute’s biomarker guidance explains how these features influence treatment selection.

A multidisciplinary discussion involving surgery, radiology, pathology, medical oncology and radiation oncology can be especially valuable when findings are complex.

Can Paget’s disease be treated with breast-conserving surgery?

Yes, breast-conserving surgery may be appropriate for selected patients.

For Paget’s disease, breast conservation generally means removing:

  • The affected nipple and areola
  • Breast tissue immediately beneath or connected to the nipple
  • Any identified DCIS or invasive tumour
  • A rim of healthy-looking tissue around the disease to achieve clear margins

This is sometimes called a central excision or central breast-conserving operation. It is more extensive than removing only the visible abnormal nipple skin.

Breast-conserving surgery may be considered when:

  • Imaging suggests disease is confined to a limited area
  • There is only one removable area of DCIS or invasive cancer
  • Clear surgical margins appear achievable
  • The amount of tissue removed would leave an acceptable breast shape
  • The patient can receive the recommended radiotherapy
  • The patient understands the possibility of further surgery if margins are involved

A systematic review available through PubMed supports breast conservation as an alternative for carefully selected patients when clear margins are achieved and radiotherapy is given. However, Paget’s disease is uncommon, and much of the available evidence comes from relatively small or retrospective studies. Selection and preoperative evaluation are therefore important.

What are surgical margins?

After surgery, a pathologist examines the outer edges of the removed tissue. A clear or negative margin means cancer cells are not present at the inked edge.

If cancer cells reach the edge, additional tissue may need to be removed. In some circumstances, a mastectomy may ultimately be recommended. Patients considering breast conservation should understand this possibility before surgery.

What will the breast look like?

Removing the nipple, areola and central breast tissue can produce flattening, a central indentation or asymmetry. Oncoplastic techniques may help reshape the remaining tissue.

The likely cosmetic result depends on:

  • Breast size and shape
  • How much tissue must be removed
  • The position and extent of the underlying cancer
  • Previous surgery
  • The effects of subsequent radiotherapy

Patients should ask about the expected appearance rather than assuming breast conservation will leave the breast unchanged.

When may mastectomy be recommended?

Mastectomy removes most or all breast tissue on the affected side. Because Paget’s disease directly involves the nipple, the nipple–areola complex is generally removed as part of treatment.

A mastectomy may be recommended when:

  • DCIS or invasive cancer is extensive
  • Cancer is present in multiple separate areas
  • Clear margins are unlikely with breast conservation
  • The necessary excision would remove a large proportion of the breast
  • Previous surgery has not achieved clear margins
  • Radiotherapy cannot be given or is medically unsuitable
  • Cancer has returned in a previously irradiated breast
  • The patient prefers mastectomy after understanding both options

Choosing mastectomy does not necessarily mean the cancer is advanced. Sometimes it is selected because of the distribution of disease inside the breast rather than because cancer has spread elsewhere.

Likewise, mastectomy should not automatically be considered “safer” for every patient. When breast conservation is oncologically appropriate, the decision should consider cancer control, radiotherapy, reconstruction, recovery and patient preference.

Patients can learn more about the broader role of breast cancer surgery before discussing their operation.

Breast-conserving surgery versus mastectomy

ConsiderationBreast-conserving surgeryMastectomy
Breast tissue removedNipple–areola complex and affected part of the breastMost or all tissue in the affected breast
Nipple preservationUsually not possibleUsually not possible because the disease involves the nipple
RadiotherapyUsually recommended afterwardDepends on tumour size, nodes, margins and other findings
Margin issueFurther surgery may be needed if margins are involvedMargin problems are less common but still possible
Breast appearanceBreast remains, but central shape may changeBreast mound is removed unless reconstructed
ReconstructionOncoplastic reshaping or later nipple reconstructionImmediate or delayed reconstruction may be possible
Follow-up imagingContinued imaging of the conserved breastRoutine mammography is generally not performed on a fully removed breast, although the other breast still needs surveillance
RecoveryOften shorter, but followed by radiotherapyUsually a larger operation; recovery depends heavily on reconstruction
Lymph-node surgeryBased on invasive cancer risk and surgical planSentinel-node biopsy may be considered, particularly when invasive disease cannot be excluded

This comparison cannot identify the correct operation for a specific patient. The final recommendation requires complete imaging and pathology information.

Can the nipple be preserved?

Usually, the affected nipple and areola need to be removed because this is where Paget cells are located. Simply treating the skin or removing a superficial sore would not address potential disease inside the nipple ducts or breast.

A nipple-sparing mastectomy is generally not appropriate when cancer involves the nipple–areola complex. A skin-sparing mastectomy may still be possible in selected patients, but the decision depends on the location and extent of disease and the reconstruction plan.

After treatment, the appearance of a nipple and areola may be recreated using:

  • Surgical nipple reconstruction
  • Medical tattooing, including three-dimensional tattoo techniques
  • A combination of reconstruction and tattooing
  • An external prosthetic nipple

These procedures usually address appearance rather than restoring normal nipple sensation or breastfeeding ability. Expectations should be discussed before the original operation whenever possible.

Will lymph nodes need to be removed?

Paget’s disease on the nipple does not by itself determine whether lymph-node surgery is needed. The decision depends mainly on the possibility or confirmation of invasive breast cancer and the operation being performed.

A sentinel lymph-node biopsy identifies the first few lymph nodes likely to receive drainage from the breast. It may be considered when:

  • Invasive breast cancer has been confirmed
  • Imaging or examination raises concern for invasive disease
  • A mastectomy is planned and invasion cannot be confidently excluded
  • The final pathology could affect additional treatment decisions

If lymph nodes appear abnormal clinically or on imaging, they may require needle biopsy or a different surgical plan.

Sentinel-node biopsy removes fewer nodes than a full axillary dissection, but it still carries possible risks such as numbness, shoulder stiffness and lymphoedema. The benefit and necessity should be discussed for the individual case.

Is radiotherapy necessary after surgery?

Radiotherapy is generally an important part of breast-conserving treatment for Paget’s disease. It treats the remaining breast tissue and reduces the risk of cancer returning in that breast.

Government guidance from Cancer Australia states that radiotherapy is almost always recommended after breast-conserving surgery for Paget’s disease. The exact radiation area, dose and schedule are determined by a radiation oncologist.

After mastectomy, radiotherapy is not automatically required. It may be recommended when findings such as tumour size, involved lymph nodes, close or positive margins, skin or chest-wall involvement, or other high-risk features increase the chance of local recurrence.

For patients travelling from outside Kathmandu or another treatment centre, access to radiotherapy is an important practical part of choosing breast-conserving surgery. Ask:

  • Where will radiotherapy be delivered?
  • How many visits are expected?
  • When will it begin after surgery?
  • Will accommodation or repeated travel be necessary?
  • Can follow-up visits be coordinated?

The surgical operation should not be selected without considering whether the rest of the treatment plan is realistically accessible.

Will chemotherapy or hormone treatment be needed?

Paget’s disease does not automatically mean chemotherapy is required.

Additional treatment depends on what is found underneath the nipple and inside the breast.

If only DCIS is found

Treatment usually centres on surgery, with radiotherapy commonly recommended after breast conservation. Hormone therapy may be discussed for some hormone-receptor-positive DCIS cases. Chemotherapy is not a standard treatment for DCIS.

If invasive breast cancer is found

Treatment is based on the stage and biology of the invasive cancer. It may include:

  • Chemotherapy
  • Hormone or endocrine therapy for hormone-receptor-positive disease
  • HER2-targeted treatment for HER2-positive disease
  • Other systemic treatments for selected subtypes and stages

The visible size of the nipple lesion does not determine whether these medicines are necessary. The invasive tumour, lymph nodes, biomarkers, stage and overall health are more important.

A specialist offering breast cancer treatment in Nepal can explain how surgery fits within the complete treatment sequence.

What reconstruction options are available?

Reconstruction is optional. Some patients want reconstruction, while others prefer a flat closure or external breast prosthesis. None of these choices should affect whether a patient receives respectful, complete cancer care.

Reconstruction after breast-conserving surgery

Oncoplastic surgery rearranges the remaining breast tissue after cancer removal. It may reduce a central dent or significant asymmetry. Depending on the breast and amount removed, surgery to the opposite breast may sometimes be discussed for balance.

A new nipple–areola appearance can be created later through surgery or tattooing.

Reconstruction after mastectomy

Options may include:

  • Implant-based reconstruction
  • Reconstruction using the patient’s own tissue
  • A combination of implant and tissue
  • Immediate reconstruction during the mastectomy
  • Delayed reconstruction after cancer treatment
  • Flat closure without reconstruction

The National Cancer Institute notes that reconstruction can be immediate or delayed. The appropriate timing depends on health, cancer treatment, previous surgery and whether radiotherapy is expected.

A patient considering reconstruction should ideally discuss it before mastectomy, even if the final choice is delayed reconstruction or no reconstruction.

Recovery and possible complications

Recovery differs between breast-conserving surgery, mastectomy and mastectomy with reconstruction. Age, general health, lymph-node surgery and the extent of reconstruction also affect recovery.

Possible effects of breast surgery include:

  • Pain, tenderness or tightness
  • Bruising and swelling
  • Temporary or permanent numbness
  • Scarring
  • Fluid collection or seroma
  • Bleeding
  • Infection
  • Delayed wound healing
  • Shoulder stiffness
  • Changes in breast shape
  • The need for another operation because of involved margins
  • Lymphoedema when lymph nodes are removed or treated

Patients may need a drain after mastectomy or more extensive reconstruction. Instructions about bathing, wound care, arm exercises, lifting and return to work should come from the treating team.

Seek urgent medical advice after surgery for heavy bleeding, rapidly increasing swelling, breathing difficulty, chest pain, a high or persistent fever, spreading redness, pus from the wound, sudden arm swelling or severe leg pain.

Emotional recovery also matters. Fear about cancer, loss of the nipple, changes in body image and uncertainty about further treatment are valid concerns. Professional counselling, family involvement and appropriate breast cancer support can help.

What determines the prognosis?

The nipple appearance alone cannot predict the outcome. Prognosis depends principally on:

  • Whether there is an underlying tumour
  • Whether it is DCIS or invasive cancer
  • Tumour size and grade
  • Lymph-node involvement
  • Cancer stage
  • Hormone-receptor and HER2 status
  • Whether the cancer is completely removed
  • Response to any additional treatment

The National Cancer Institute similarly identifies the underlying tumour, invasiveness and stage as important prognostic factors.

Online survival statistics cannot accurately predict an individual person’s outcome. Prognosis should be discussed after the complete pathology and staging results are available.

Planning Paget’s disease treatment in Nepal

Patients sometimes arrive for consultation with only a pathology message or photograph of the nipple. Bringing complete records can make the consultation more useful and may reduce unnecessary repetition of tests.

If available, bring:

  • Original biopsy report
  • Pathology slides or tissue blocks when requested
  • Mammography, ultrasound or MRI reports
  • Imaging films or digital copies—not reports alone
  • Reports from biopsies of any breast mass
  • Previous operation records
  • Current medication list
  • Details of other medical conditions
  • Questions about surgery, reconstruction and radiotherapy

Patients travelling from outside Kathmandu should also consider:

  • How long they may need to remain near the hospital
  • Whether a drain will require follow-up
  • Where wound checks will occur
  • Whether radiotherapy will require repeated visits
  • Who to contact if a postoperative problem develops
  • Whether parts of follow-up can be coordinated locally

A second opinion in breast cancer may be particularly useful when there is uncertainty about breast conservation, imaging findings, surgical margins or reconstruction.

Questions to ask your breast surgeon

Before agreeing to an operation, consider asking:

  1. Has the nipple biopsy been reviewed and confirmed?
  2. Is DCIS or invasive cancer present elsewhere in the breast?
  3. Is the disease confined to one area?
  4. Am I medically suitable for breast-conserving surgery?
  5. How much breast tissue and skin will be removed?
  6. What appearance can I realistically expect?
  7. What happens if the surgical margins are not clear?
  8. Do I need sentinel lymph-node biopsy?
  9. Will I need radiotherapy?
  10. Should reconstruction be performed immediately or later?
  11. Could chemotherapy, hormone therapy or targeted treatment be necessary?
  12. How will treatment and follow-up be coordinated if I live outside Kathmandu?

The most important treatment message

Mastectomy is not compulsory for every person with Paget’s disease of the breast. Breast-conserving surgery may be a sound option when the disease is limited, clear margins can be achieved and the patient can receive the recommended radiotherapy.

Mastectomy may be more appropriate when cancer is extensive, present in several areas, difficult to remove with acceptable margins or when breast conservation and radiotherapy are unsuitable.

The safest choice is not determined by the nipple’s appearance alone. It comes from matching the operation to the complete imaging, pathology, cancer biology and patient’s priorities.

For individual evaluation, consult a qualified breast cancer surgeon in Nepal or book an appointment.

This information is educational and does not replace an examination, diagnosis or personalised treatment plan.

Frequently Asked Questions

Is mastectomy always necessary for Paget’s disease?

No. Selected patients may undergo breast-conserving surgery that removes the nipple–areola complex and affected breast tissue, usually followed by radiotherapy. Mastectomy may be recommended if disease is extensive, occurs in several areas or cannot be removed with clear margins.

Can the affected nipple be saved?

Usually not. Paget’s disease directly involves the nipple and often the areola, so this area normally needs to be removed. A new nipple areola appearance may later be created with reconstruction, medical tattooing or both.

Does breast-conserving surgery always require radiotherapy?

Radiotherapy is generally recommended after breast-conserving surgery for Paget’s disease. There may be unusual exceptions based on individual circumstances, but patients should not choose breast conservation assuming they can automatically avoid radiation.

Is chemotherapy required?

Not necessarily. Chemotherapy is not routinely used for disease limited to DCIS. If invasive cancer is found, chemotherapy depends on its size, stage, lymph nodes, biomarkers and other risk factors.

Will I need lymph-node surgery?

Not everyone does. Sentinel lymph-node biopsy may be recommended when invasive cancer is present or suspected, or when a mastectomy is planned and lymph-node information could affect treatment. The decision should be individualised.

Can reconstruction be performed during a mastectomy?

Some patients can have immediate reconstruction, while others are better suited to delayed reconstruction. The expected need for radiotherapy, general health, breast anatomy and personal preferences can influence timing.

Is breast-conserving surgery safer than mastectomy?

Neither operation is universally safer or better. Breast conservation can be appropriate when all known disease can be removed with clear margins and radiotherapy is feasible. Mastectomy may provide better local treatment when disease is too extensive for conservation.

Should I get a second opinion?

A second opinion can help when imaging and biopsy findings do not appear consistent, when different operations have been recommended, or when you want to understand reconstruction and radiotherapy before deciding. Bring the pathology material and original imaging whenever possible.

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