When cancer is diagnosed, one of the most important questions patients and families ask is: “Has it spread?”
Sentinel Lymph Node Biopsy is a procedure that helps answer this question in selected cancers. It allows us to identify and remove the first lymph node or nodes where cancer cells are most likely to travel from the main tumor.
I am Dr. Suraj Manjunath, a Surgical Oncologist in Bangalore, associated with Apollo Hospital, Bannerghatta Road and Apollo Hospital, Sarjapur Road.
My focus is on planning cancer surgery with precision, safety, and the least necessary extent of surgery for each patient.
Not every patient needs Sentinel Lymph Node Biopsy. But when it is suitable, it can provide valuable information for staging, treatment planning, and avoiding unnecessary removal of many lymph nodes.
This page will help you understand what Sentinel Lymph Node Biopsy means, when it is used, what to expect before and after the procedure, and why surgeon judgment is important.
+
+
+
+
Sentinel Lymph Node Biopsy is not required for every cancer patient. It is considered only when it can give useful information and when it is safe and appropriate for the patient.
This procedure may be used in selected cases of:
Breast cancer, especially early-stage breast cancer where the lymph nodes are not clearly involved on examination or scans.
Melanoma, a type of skin cancer where lymph node staging can influence treatment planning.
Certain gynecological cancers, including selected cases of vulvar cancer, cervical cancer, and endometrial cancer, depending on stage and disease pattern.
Some urologic cancers, such as penile cancer, in carefully selected situations.
Other cancers where lymphatic spread assessment is important and where the sentinel node technique is appropriate.
The decision depends on many factors: the cancer type, tumor size, tumor location, stage, scan findings, biopsy report, previous surgery or treatment, and the patient’s overall health.
The right approach depends on your specific condition. Not every patient needs the same type of surgery.
Sentinel Lymph Node Biopsy helps us understand the stage of cancer more accurately. Staging means understanding how far the cancer has grown or spread.
In some patients, sentinel node results may influence whether additional treatment is needed after surgery. For example, if cancer cells are found in the lymph node, the oncology team may discuss further treatment such as radiation, chemotherapy, immunotherapy, targeted therapy, or additional lymph node surgery.
In other patients, a negative sentinel node result can be reassuring and may help avoid unnecessary extensive lymph node removal.
It is important to understand that Sentinel Lymph Node Biopsy is not a treatment for all cancer spread. It is mainly a staging and decision-making procedure. Its value lies in helping us choose the right next step.
In suitable patients, Sentinel Lymph Node Biopsy can offer several benefits.
However, it also has limitations.
My approach is simple: I do not recommend a procedure just because it is advanced or modern. I recommend it only when it adds value to your diagnosis, staging, treatment planning, and safety.
Sentinel Lymph Node Biopsy may sound like a small procedure, but it requires careful decision-making.
The surgeon must first decide whether the procedure is appropriate for the patient. This depends on the type of cancer, stage, previous treatment, tumor location, and available imaging.
The next step is proper mapping. In many cases, a special dye, radioactive tracer, or both may be used to identify the sentinel lymph node. The surgeon must then locate and remove the correct node or nodes.
The real expertise lies not only in performing the procedure, but in knowing when to use it and when not to use it.
In cancer surgery, the safest and most effective approach matters more than choosing the newest technique. A good cancer surgeon should be able to choose between sentinel node biopsy, more extensive lymph node surgery, minimally invasive cancer surgery, robotic cancer surgery, open cancer surgery, or a non-surgical treatment pathway depending on the patient’s needs.
Before the procedure, I will review your diagnosis, biopsy report, scans, stage of cancer, general health, and treatment plan. We will discuss why Sentinel Lymph Node Biopsy is being considered and whether it is the best option for you.
You may need routine blood tests, imaging, anesthesia assessment, and pre-surgery fitness evaluation. If the procedure is being done along with cancer surgery, preparation will depend on the main surgery as well.
On the day of the procedure, a dye or tracer may be used to locate the sentinel lymph node. This helps identify the lymph node that first receives drainage from the tumor area.
The identified lymph node or nodes are removed through a small incision and sent for pathology testing. Sometimes the result is available during surgery; in many cases, the final detailed report comes later.
After surgery, you may have mild pain or discomfort at the incision site. Most patients recover well, but recovery depends on whether Sentinel Lymph Node Biopsy was done alone or along with a larger cancer surgery.
Your follow-up visit is important. We will review the pathology report and discuss whether any further treatment is needed.
Many patients ask about the cost of Sentinel Lymph Node Biopsy in Bangalore. This is a valid and practical question, especially when families are planning treatment.
It is important to understand that there is no single fixed cost that applies to every patient.
The cost may depend on:
In some patients, sentinel node biopsy may be part of breast cancer surgery, melanoma surgery, gynecological cancer surgery, or another cancer operation. In such cases, the total cost is calculated based on the complete surgical plan, not just the biopsy alone.
During consultation, I prefer to explain the medical need first. Once the treatment plan is clear, the hospital team can guide you with a more accurate estimate.
I currently consult at:
These centres provide access to comprehensive cancer care within a well-equipped hospital environment, supporting multidisciplinary treatment, investigations, and post-operative care when required.
Consultation timings and appointment details can be arranged through phone or WhatsApp for convenience.
If you or your loved one has been advised Sentinel Lymph Node Biopsy, it is natural to have questions.
You may be wondering:
Is this procedure really needed?
Will it show whether cancer has spread?
Can it help avoid major lymph node surgery?
What happens if the result is positive?
What will recovery be like?
What will the cost be?
These are important questions, and they deserve clear answers.
My goal is to help you understand your condition calmly and make an informed decision. I will review your reports, explain the role of Sentinel Lymph Node Biopsy, and guide you on whether it is appropriate in your case.
Not every patient needs the same treatment. The safest plan is the one that is designed for your cancer, your body, and your long-term outcome.