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: 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: 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: 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: 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: 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: 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 Consideration Breast-conserving surgery Mastectomy Breast tissue removed Nipple–areola complex and affected part of the breast Most or all tissue in the affected breast Nipple preservation Usually not possible Usually not possible because the disease involves the nipple Radiotherapy Usually recommended afterward Depends on tumour size, nodes, margins and other findings Margin issue Further surgery may be needed if margins are involved Margin problems are less common but still possible Breast appearance Breast remains, but central shape may change Breast mound is removed unless reconstructed Reconstruction Oncoplastic reshaping or later nipple reconstruction Immediate or delayed reconstruction may be possible Follow-up imaging Continued imaging of the conserved breast Routine mammography is generally not performed on a fully removed breast, although the other breast still needs surveillance Recovery Often shorter, but followed by radiotherapy Usually a larger operation; recovery depends heavily on reconstruction Lymph-node surgery Based on invasive cancer risk and surgical plan Sentinel-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 … Read more