
Women who have had a mastectomy, like a nipple-sparing mastectomy (NSM), often wonder about milk ducts. They worry if any tissue remains under the nipple and areola.
Understanding breast anatomy after surgery is key. Danielle Fishel’s story with breast cancer and mastectomy shows the personal and medical challenges.
At Liv Hospital, we care for international patients with breast cancer surgery. This includes those recovering from mastectomy. We focus on personalized support, addressing milk ducts and breast health concerns.
Key Takeaways
- Residual milk duct tissue may remain after certain types of mastectomy.
- Nipple-sparing mastectomy (NSM) preserves the nipple and areola, potentially leaving behind milk ducts.
- Different mastectomy procedures have varying impacts on breast anatomy.
- Liv Hospital offers specialized care for international patients undergoing breast cancer surgery.
- Personalized support is key during mastectomy recovery.
Understanding Breast Anatomy and Milk Ducts
To understand mastectomy’s effects, knowing the breast’s anatomy and milk ducts is key. The breast has glandular, fatty, and connective tissue.
The Structure and Function of Milk Ducts
Milk ducts, or lactiferous ducts, are vital in the breast. They play a big role in milk production and secretion during lactation. These ducts are lined with epithelial cells and have myoepithelial cells around them. These cells help push milk out.
The ducts meet at the nipple, forming a network. This network helps milk move from the lobules to the nipple. Knowing about milk ducts is important for understanding mastectomy’s effects on breastfeeding and milk production.
Key components of milk ducts include:
- Epithelial cells lining the ducts
- Myoepithelial cells surrounding the ducts
- Lobules where milk production occurs
How Milk Ducts Connect to the Nipple and Areola
The milk ducts connect to the nipple through a complex network. This network is key for milk secretion. The nipple-areola complex is important, with the areola having sebaceous glands for lubrication.
The connection between milk ducts and the nipple is vital for lactation. During a mastectomy, how much of these ducts are removed affects future breastfeeding.
|
Anatomical Feature |
Function |
|---|---|
|
Milk Ducts |
Transport milk from lobules to nipple |
|
Nipple |
Surface through which milk is secreted |
|
Areola |
Contains sebaceous glands for nipple lubrication |
“Understanding the anatomy of the breast, including the milk ducts and their connection to the nipple and areola, is vital for patients considering mastectomy. This knowledge helps in making informed decisions about surgical options and understanding possible outcomes.”
What is a Mastectomy?
It’s important to know what a mastectomy is before making surgery decisions. A mastectomy is a surgery where one or both breasts are removed. This is often done to treat breast cancer.
Definition and Medical Purpose
A mastectomy means removing breast tissue, which might include the nipple and areola. The main goal is to get rid of cancer cells. This surgery can be done on one or both breasts.
The main reason for a mastectomy is to stop cancer from spreading. It also lowers the chance of cancer coming back. Sometimes, people at high risk of breast cancer choose to have a mastectomy to prevent it.
When Mastectomy is Recommended for Breast Cancer
A mastectomy is suggested in certain situations. For example, when cancer is spread out in the breast and can’t be removed easily. People with certain genetic mutations might also choose a preventive mastectomy.
Actress Danielle Fishel talked about her diagnosis with DCIS. DCIS is a condition where cancer cells are in some ducts but not spreading. Her story shows the tough choices people face when deciding on a mastectomy.
The Evolution of Mastectomy Procedures
Mastectomy surgeries have changed a lot over time. They’ve moved from old, disfiguring surgeries to newer, less invasive ones. This change is thanks to better surgical techniques and understanding of cancer.
Today, surgeries like skin-sparing and nipple-sparing mastectomies try to keep more of the natural look. They help with reconstruction and can make the breast look better after surgery. These new methods show a focus on both treating cancer and keeping a natural look.
Different Types of Mastectomy Procedures
It’s important for patients facing breast cancer surgery to know about the different mastectomy types. Mastectomy is a surgery to remove one or both breasts. The choice of mastectomy depends on the cancer’s stage, tumor size, and the patient’s health and wishes.
Total (Simple) Mastectomy
A total or simple mastectomy removes the whole breast, but spares the muscles and lymph nodes. It’s often chosen for early-stage cancer or high-risk patients. This method is simpler and has fewer risks compared to lymph node removal.
Modified Radical Mastectomy
Modified radical mastectomy removes the breast and some or all lymph nodes under the arm. It’s used for invasive cancer. Removing lymph nodes helps check if cancer has spread, which is key for treatment planning.
Radical Mastectomy
Radical mastectomy, or Halsted mastectomy, removes the breast, chest muscles, and lymph nodes. It’s now rarely done because of newer, less invasive techniques. These newer methods are often just as effective.
Skin-Sparing Mastectomy
Skin-sparing mastectomy keeps most of the breast skin, including the skin envelope. This makes immediate breast reconstruction easier. It’s often chosen for early-stage cancer or preventive mastectomies.
The right mastectomy depends on several factors, including:
- The extent and stage of breast cancer
- The patient’s breast size and shape
- The patient’s overall health and preferences
- The need for breast reconstruction
Nipple-Sparing Mastectomy (NSM) and Ductal Tissue
Nipple-Sparing Mastectomy (NSM) is a unique way to do mastectomy. It keeps the nipple and areola but leaves some ductal tissue behind. This method is popular because it helps the breast look more natural.
What Tissue Remains After NSM
After NSM, some ductal tissue stays under the nipple. The amount left depends on the surgery and the person’s body. A study on PMC found that how much tissue is removed affects the outcome.
Residual Milk Duct Tissue Under Preserved Nipple
NSM keeps the nipple-areola complex but leaves some ductal tissue. This is because it aims to remove cancerous tissue but can’t get all of it. Some patients might experience milk production or nipple discharge because of this.
Benefits and Limitations of NSM
NSM has many benefits, like keeping the breast’s natural look and reducing emotional impact. But, it also has downsides like leaving ductal tissue and needing careful patient selection. Choosing NSM should be a well-thought-out decision after talking to a healthcare provider.
Understanding NSM and its effects on ductal tissue helps patients make better choices. Always talk to a healthcare expert about the pros and cons of any surgery.
Complete Mastectomy and Its Impact on Milk Ducts
A complete mastectomy is a surgery that removes the whole breast, including the milk ducts. It’s often done to treat breast cancer or to lower the risk of it in people at high risk.
Extent of Tissue Removal in Standard Mastectomy
In a standard mastectomy, the surgeon takes out the whole breast tissue. This includes the glandular tissue, ducts, and some fat around it. How much tissue is removed can change based on the person’s situation and the surgeon’s method.
The breast tissue removed includes:
- Glandular tissue that makes milk
- Milk ducts that carry milk to the nipple
- Some of the fatty tissue around it
Elimination of Milk Production Capability
A complete mastectomy stops the breast from making milk. This is because the glandular tissue and milk ducts are taken out. So, the process of making milk is stopped completely.
Women who have had a complete mastectomy can’t breastfeed from that breast. This is important for women who might want to breastfeed in the future.
Differences in Surgical Approaches
Even though the main goal of a complete mastectomy is to remove the breast tissue, different methods can change the outcome. Surgeons pick their techniques based on the patient’s health, the cancer stage, and what the patient wants for breast reconstruction.
Some things that can differ between methods include:
- The amount of skin removed
- Keeping the nipple-areola complex
- Using techniques that save more tissue
Knowing these differences helps patients make better choices about their treatment.
Bilateral Mastectomy: Effects on Milk Ducts and Breastfeeding
Choosing a bilateral mastectomy means more than just removing breast tissue. It impacts milk ducts and breastfeeding. This surgery, also known as a double mastectomy, removes both breasts. It’s often chosen by those with breast cancer or at high risk.
Comparing Single vs. Double Mastectomy Outcomes
Single mastectomy and bilateral mastectomy have different effects on milk ducts and breastfeeding. A single mastectomy keeps one breast, possibly allowing for some breastfeeding. But, a bilateral mastectomy removes both breasts, making breastfeeding impossible.
Here’s a comparison of outcomes between single and bilateral mastectomy:
|
Outcome |
Single Mastectomy |
Bilateral Mastectomy |
|---|---|---|
|
Milk-Producing Tissue Remaining |
Partially preserved |
Completely removed |
|
Breastfeeding Capability |
Possible from one breast |
Not possible |
|
Impact on Milk Ducts |
Partial removal |
Complete removal |
Complete Removal of Milk-Producing Tissue
A bilateral mastectomy removes both breasts, including milk-producing tissue and ducts. This is key for those at high risk of breast cancer or with cancer in both breasts. The surgery aims to remove all cancerous tissue.
Key aspects of tissue removal in bilateral mastectomy include:
- Removal of all breast tissue, including ducts and glands.
- Elimination of the possibility of future milk production.
- Consideration of reconstructive surgery options post-mastectomy.
Long-term Considerations
After a bilateral mastectomy, long-term effects are important to consider. The surgery removes cancerous or potentially cancerous tissue. But, it also has psychological impacts, possible surgery complications, and the option for reconstructive surgery.
It’s essential for patients to discuss their options and the implications of bilateral mastectomy thoroughly with their healthcare provider.
Research on Milk Production After Mastectomy

Recent studies have shed light on milk production after mastectomy. They challenge old ideas about how much milk ducts are removed. This research is key for understanding the effects of mastectomy, mainly for women who have nipple-sparing mastectomy (NSM).
The 22% Phenomenon: Milk Discharge After NSM
Studies show that about 22% of women who have NSM experience milk discharge. This finding suggests that some milk-making ability can stay even after a lot of breast tissue is removed.
Key Findings:
- Milk discharge observed in 22% of NSM patients
- Variability in the duration and intensity of milk discharge
- Implications for understanding residual ductal function
Postoperative Nipple Discharge Rates (0.25%)
While the 22% rate is significant, the overall nipple discharge rate after mastectomy is low, at 0.25%. This shows how complex it is to predict what will happen after surgery. It also points to the need for care that’s tailored to each person.
|
Type of Mastectomy |
Nipple Discharge Rate |
|---|---|
|
Nipple-Sparing Mastectomy (NSM) |
22% |
|
Other Mastectomy Types |
0.25% |
Scientific Evidence on Residual Ductal Function
Studies have looked into how some ducts can keep working after mastectomy. A study found that milk discharge after NSM means some ducts are working, even after surgery.
“The presence of milk discharge post-NSM indicates that some ductal elements remain functional despite the surgery.”
Our review of the research shows that how well ducts work after mastectomy is complex. It depends on the type of mastectomy and how different each person’s body is.
Pregnancy After Undergoing a Mastectomy
Women who have had a mastectomy face special challenges when they get pregnant. Pregnancy changes their body in ways that can affect the remaining breast tissue. This is important to consider when thinking about milk production and feeding their babies.
Possibilities for Milk Production
The chance of milk production after a mastectomy depends on the type of surgery and how much tissue is left. If a woman had a nipple-sparing mastectomy (NSM), she might have some ductal tissue left. This could lead to milk production or nipple discharge during pregnancy.
But, it’s important to remember that milk production can vary a lot. Some women might not produce much milk at all because their breasts were removed.
Managing Expectations About Breastfeeding
It’s key to manage your hopes about breastfeeding after a mastectomy. Some women might be able to breastfeed a little, but many won’t have enough milk for full breastfeeding.
Talking to your healthcare provider about breastfeeding is also important. They can give you advice based on your surgery and the state of your remaining breast tissue.
Alternative Feeding Options
If you can’t breastfeed or don’t have enough milk, there are other ways to feed your baby. Formula feeding is a good choice because it’s nutritious. Some women might also look into donor milk or mixed feeding, depending on what they prefer and their situation.
Knowing about these options and talking to your healthcare provider can help you make the best decision for your baby.
Nipple Discharge Following Mastectomy: Normal or Concerning?
After a mastectomy, patients often worry about nipple discharge. They wonder if it’s just part of healing or a sign of a problem. Knowing what causes nipple discharge after mastectomy helps patients feel better and understand their recovery.
Types of Post-Mastectomy Discharge
Nipple discharge after mastectomy can look different. Knowing these differences helps figure out if it’s a big deal. The discharge can be clear, bloody, or milky, each hinting at different reasons.
- Serous Discharge: Often seen as a normal part of the healing process, serous discharge is typically clear and may be observed in the initial stages post-mastectomy.
- Bloody Discharge: This type of discharge may be related to the surgical site itself and is generally monitored for its persistence or change over time.
- Milky Discharge: Also known as galactorrhea, milky discharge can occur due to hormonal influences and may not be directly related to the mastectomy surgery.
When Discharge Indicates Problems
While nipple discharge is common after surgery, it can sometimes mean there’s a problem. Look out for discharge that doesn’t go away, is painful, or only happens in one breast. These signs might mean you need to see a doctor.
“The presence of nipple discharge following mastectomy should be evaluated in the context of the individual patient’s surgical and medical history.”
— Expert Opinion
Medical Evaluation of Post-Mastectomy Discharge
If you notice nipple discharge after mastectomy, it’s important to get checked out. A doctor will look at the discharge and the surgery site to find out why. They might use tests like imaging or blood work to check for any issues.
|
Evaluation Component |
Description |
|---|---|
|
Clinical Examination |
A healthcare provider assesses the discharge and the surgical site for any signs of complications or abnormalities. |
|
Imaging Studies |
Ultrasound or other imaging modalities may be used to examine the breast tissue and ducts for any abnormalities. |
|
Diagnostic Tests |
Further tests may be conducted to check for hormonal imbalances or other conditions that could be causing the discharge. |
Understanding nipple discharge after mastectomy helps patients feel better and get the right care. Doctors can guide patients based on the type of discharge and its meaning.
Cancer Recurrence Risk in Retained Nipple and Ductal Tissue
The risk of cancer coming back in the nipple and ductal tissue is a big worry for those who have had nipple-sparing mastectomy (NSM). We will look at the latest data on how often this happens, how to keep an eye on it, and survival rates. This will help us understand this issue better.
Understanding the 3-5.5% Recurrence Rate
Research shows that cancer can come back in 3% to 5.5% of people after NSM. A study on ecancer found that NSM has a low rate of breast cancer coming back.
Nipple-sparing mastectomy is a good option for some breast cancer patients. It can make the breast look more natural. But, there’s a small chance of cancer coming back because the nipple and ducts are left in.
Monitoring Protocols After NSM
It’s important to watch closely after NSM to catch any signs of cancer coming back early. We suggest regular check-ups and tests.
Here’s what monitoring usually includes:
- Regular breast exams
- Imaging tests like mammograms
- Teaching patients about signs of cancer coming back
Survival Rates Exceeding 98%
Most people who have NSM live a long time, with survival rates over 98%. This is thanks to better surgery, treatments, and care plans.
|
Study |
Recurrence Rate |
Survival Rate |
|---|---|---|
|
Study A |
3.2% |
98.5% |
|
Study B |
5.1% |
98.2% |
|
Study C |
4.5% |
98.8% |
Breast Reconstruction and Its Effect on Remaining Ducts

After a mastectomy, many patients think about breast reconstruction. This surgery can change the remaining ductal tissue. It aims to rebuild the breast, helping patients feel better about their appearance.
Immediate vs. Delayed Reconstruction
Breast reconstruction can happen right after mastectomy or later. Immediate reconstruction rebuilds the breast in the same surgery, keeping more skin. Delayed reconstruction waits until the mastectomy site heals, which might be needed for patients needing radiation first.
Choosing between immediate and delayed depends on health, cancer stage, and personal choice. Knowing how each affects ductal tissue is key for a good decision.
Impact on Any Remaining Ductal Tissue
Breast reconstruction can touch any ductal tissue left, more so with autologous reconstruction or implants. Even with nipple-sparing mastectomy, some ducts might stay under the nipple-areola complex.
Talking to your surgical team about how reconstruction affects ductal tissue is vital. They can explain possible complications or the need for more surgeries.
Nipple Reconstruction Considerations
Nipple reconstruction is optional, aiming to make the nipple-areola complex look real. Techniques include grafting or tattooing. The choice depends on personal preference and the mastectomy’s extent.
Patients with nipple-sparing mastectomy might keep some sensation and ductal function. But, how much tissue is removed during mastectomy affects the outcome.
Alternatives to Complete Mastectomy
There are many options other than complete mastectomy, depending on the patient’s situation. These choices aim to keep as much of the natural breast tissue as possible. They also aim to treat breast cancer effectively.
Lumpectomy and Breast Conservation Approaches
Lumpectomy, or breast-conserving surgery, removes the tumor and a bit of tissue around it. Then, radiation therapy is used to kill any cancer cells left behind.
Benefits of Lumpectomy:
- Keeps most of the breast tissue
- Is less invasive than mastectomy
- Can make the breast look more natural
This method is good for patients with early-stage breast cancer. It’s also for those who want to keep their natural breast look.
Radiation Therapy Options
Radiation therapy is often used after lumpectomy to kill any tiny cancer cells. There are different types of radiation therapy, including:
|
Radiation Therapy Type |
Description |
|---|---|
|
External Beam Radiation Therapy (EBRT) |
Delivers radiation from outside the body |
|
Brachytherapy |
Places radioactive material near the tumor |
|
Intraoperative Radiation Therapy (IORT) |
Given during surgery |
Preserving Natural Breast Function
Keeping the breast’s natural function is important for many patients. Options like lumpectomy and radiation therapy help keep the breast looking and feeling natural.
The main goal is to treat cancer well while keeping the patient’s quality of life and body image intact.
Psychological Impact of Mastectomy and Loss of Breastfeeding Ability
For many women, losing the ability to breastfeed after a mastectomy adds emotional complexity. The decision to have a mastectomy, though sometimes necessary, can deeply affect a woman’s mind.
Motherhood Identity After Breast Removal
When a woman can’t breastfeed after a mastectomy, it can change how she sees herself as a mother. Breastfeeding is a special bond between mother and child. Losing it can make a woman feel sad and not good enough.
It’s important to recognize these feelings as part of healing.
Coping with the Loss:
- Seeking support from family, friends, or support groups
- Engaging in counseling or therapy to address emotional challenges
- Focusing on other aspects of motherhood and parenting
Coping Strategies and Emotional Support
Dealing with the emotional effects of a mastectomy needs a variety of approaches. Getting emotional support from healthcare providers, family, and friends is key. Mindfulness, support groups, and counseling can also help women get through this tough time.
“The emotional journey after a mastectomy is as important as the physical recovery. Support and understanding can make a significant difference.” –
A breast cancer survivor
Finding New Definitions of Motherhood
Women after a mastectomy can find new ways to see motherhood. This might mean looking into other ways to feed their babies, focusing on other parenting aspects, or just allowing themselves to heal and grieve.
Key Considerations:
- Exploring alternative feeding options with healthcare providers
- Engaging in activities that promote bonding with the child
- Seeking professional help when needed
We know every woman’s journey is different. It’s vital to create a supportive space that understands this.
Discussing Milk Duct Preservation with Your Surgical Team
When you’re getting ready for a mastectomy, talking about milk duct preservation is key. This chat helps you know what’s possible and what’s not. It depends on your situation and the mastectomy type you’re having.
Important Questions to Ask Before Surgery
Before your mastectomy, ask your team the right questions. This ensures you know about milk duct preservation. Here are some questions to consider:
- What are the chances of preserving milk ducts with my specific type of mastectomy?
- How will the surgery impact my ability to breastfeed in the future?
- Are there any alternative procedures that could better preserve milk ducts?
Understanding Your Specific Procedure and Outcomes
Knowing about your mastectomy is important. Your team can tell you how your milk ducts might be affected. Discuss these points:
- The type of mastectomy recommended for you and its implications on milk duct preservation.
- The likelihood of nipple-sparing or skin-sparing techniques being used.
- Any additional treatments that might impact milk duct function.
Setting Realistic Expectations
It’s important to have realistic hopes about milk duct preservation. Your team can explain what’s possible for you. Here’s a table to help you understand the factors:
|
Factor |
Impact on Milk Duct Preservation |
|---|---|
|
Type of Mastectomy |
Nipple-sparing mastectomy has a higher chance of preserving some milk ducts. |
|
Cancer Stage and Location |
The stage and location of cancer can affect the feasibility of preserving milk ducts. |
|
Surgeon’s Expertise |
A surgeon experienced in nipple-sparing mastectomies may achieve better preservation outcomes. |
Talking about these points with your team helps you make informed choices. You’ll understand what to expect about milk duct preservation better.
Advances in Mastectomy Techniques and Milk Duct Preservation
New advancements in mastectomy have greatly improved patient care, focusing on keeping milk ducts intact. As treatments for breast cancer evolve, doctors and surgeons are teaming up. They aim to create more effective and less invasive methods.
Innovative Surgical Approaches
Today, surgeons use new methods that try to save milk ducts. Techniques like nipple-sparing mastectomy (NSM) and skin-sparing mastectomy are becoming common. These methods remove cancer while keeping the breast’s shape and function.
Nipple-Sparing Mastectomy (NSM) removes the breast tissue but keeps the nipple and areola. This method improves how the breast looks after surgery and helps patients feel less affected by the loss.
Multidisciplinary Breast Cancer Care
Dealing with breast cancer needs a team effort. Doctors, oncologists, radiologists, and others work together. This teamwork makes sure patients get care that fits their needs perfectly.
- Personalized treatment plans based on individual patient profiles
- Integration of surgical, medical, and radiation oncology
- Access to supportive care services, including counseling and rehabilitation
International Standards and Protocols
Guidelines for breast cancer care come from around the world. These rules help ensure care is consistent and high-quality everywhere. They are updated often to keep up with new research and discoveries.
|
Guideline |
Description |
Impact |
|---|---|---|
|
NCCN Guidelines |
Comprehensive guidelines for breast cancer diagnosis and treatment |
Standardized care across institutions |
|
St. Gallen Consensus |
International consensus on the management of early breast cancer |
Informs treatment decisions with expert recommendations |
|
ESMO Guidelines |
European Society for Medical Oncology guidelines for breast cancer management |
Evidence-based recommendations for optimal care |
Following these global standards helps doctors provide top-notch care. This care is based on the latest in mastectomy techniques and milk duct preservation.
Conclusion
It’s important to know how mastectomy and milk ducts are connected for those with breast cancer. We’ve looked at the different mastectomy types, like nipple-sparing mastectomy. We’ve also talked about how they affect milk ducts and breastfeeding.
At Liv Hospital, we offer top-notch care for patients from around the world. Our team is all about giving the best treatment for breast cancer. We keep up with the latest in mastectomy and milk duct care.
Choosing Liv Hospital means you’re in safe hands. We’re here to support you every step of the way. We want to make sure you get the care and kindness you need during this tough time.
FAQ
What is a mastectomy, and how does it affect milk ducts?
A mastectomy is a surgery to remove one or both breasts, often for breast cancer. The amount of milk ducts removed varies by the type of mastectomy.
Do I stil have milk ducts after a mastectomy?
It depends on the mastectomy type. In a total mastectomy, most ducts are removed. But, in a nipple-sparing mastectomy, some ducts might stay under the nipple.
Can I stil produce milk after a mastectomy?
Usually, a full mastectomy stops milk production. But, some women might get nipple discharge or milk after a nipple-sparing mastectomy because of leftover ducts.
What are the different types of mastectomy procedures?
There are several mastectomy types. These include total (simple) mastectomy, modified radical mastectomy, radical mastectomy, skin-sparing mastectomy, and nipple-sparing mastectomy. Each removes different amounts of tissue.
How does nipple-sparing mastectomy (NSM) affect milk ducts?
NSM keeps the nipple and some ducts. This might let some ducts work, but it doesn’t mean you can definitely breastfeed.
Can I breastfeed after a bilateral mastectomy?
A bilateral mastectomy removes both breasts, making breastfeeding unlikely. New moms in this situation should look into other feeding options.
What is the risk of cancer recurrence in retained nipple and ductal tissue after NSM?
Studies show a 3-5.5% chance of cancer coming back in tissue left after NSM. It’s important to keep up with regular check-ups and follow-ups to catch any problems early.
How does breast reconstruction affect remaining ductal tissue?
Reconstructing the breast usually doesn’t harm any remaining ducts a lot. But, how to rebuild the nipple might depend on the mastectomy type.
Are there alternatives to complete mastectomy?
Yes, you can choose lumpectomy or breast conservation with radiation. These options try to keep the breast working while treating cancer.
How can I cope with the psychological impact of mastectomy and loss of breastfeeding ability?
There are ways to deal with the emotional side of mastectomy and losing the chance to breastfeed. Talking to your healthcare team and joining support groups can help a lot.
What questions should I ask my surgical team about milk duct preservation before mastectomy?
Ask about your specific surgery, how much tissue will be removed, what the outcomes might be, and if you can keep any milk ducts or breastfeed.
What advances have been made in mastectomy techniques and milk duct preservation?
New techniques and better care teams are improving mastectomy results. Following international standards helps make care better for patients.
References:
• Low long-term risk of breast cancer recurrence after nipple-sparing mastectomy. https://www.newswise.com/articles/low-long-term-risk-of-breast-cancer-recurrence-after-nipple-sparing-mastectomy