When people hear the word “oncologist,” they usually think of a single cancer doctor.
But in reality:
👉 Cancer treatment often involves multiple specialists working together.
According to Dr. Deenadayalan T, modern cancer care is most effective when different oncology experts collaborate as a team.
Let’s understand the three major types of oncologists and their roles in cancer treatment.
👨⚕️ 1. Surgical Oncologist
A Surgical Oncologist is a doctor specialized in performing cancer surgeries.
At first glance, people may think:
👉 “Surgery is surgery.”
But cancer surgery is very different from routine surgery.
🔬 Why Cancer Surgery Requires Special Expertise
Cancer surgeries must follow strict oncological principles.
The goal is not just to remove the visible tumor.
👉 The surgeon must also:
- Remove surrounding risk areas
- Prevent local recurrence
- Preserve important organs whenever possible
Improper surgery can increase the risk of cancer returning at the same site.
That’s why specialized training matters.
☢️ 2. Radiation Oncologist
A Radiation Oncologist is a doctor specialized in radiation therapy.
Many people mistakenly call radiation:
👉 “Current” or electricity.
That is incorrect.
Radiation therapy uses:
👉 High-energy X-rays
These rays are carefully directed toward the tumor to destroy cancer cells.
🎯 How Radiation Therapy Is Used
Radiation is used in different situations.
✅ After surgery
To destroy microscopic cancer cells that may remain in the operated area.
✅ As the primary treatment
For some cancers, radiation alone can cure the disease.
Examples include:
- Cervical cancer
- Mouth cancer
✅ In advanced cancer
Radiation helps:
- Reduce pain
- Control bleeding
- Improve quality of life
💊 3. Medical Oncologist
A Medical Oncologist treats cancer using medications.
Earlier, these doctors were often called:
👉 “Chemotherapists”
Because chemotherapy was once the only major treatment option.
Today, cancer medicine has evolved significantly.
🧬 Modern Cancer Treatments Used by Medical Oncologists
Medical oncologists now use:
- Chemotherapy
- Targeted therapy
- Immunotherapy
- Hormonal therapy
Because of this broader role:
👉 “Medical oncologist” is the correct term today.
⚠️ Why Medical Oncology Is Extremely Important
Here’s something many patients don’t realize:
👉 Even after surgery, microscopic cancer cells may still circulate in the bloodstream.
These are called:
👉 Circulating Tumor Cells (CTCs)
Even if scans appear normal:
- Tiny invisible cancer cells may remain
- These can later cause relapse
This is why medications are often given:
👉 After surgery
To destroy hidden cancer cells and reduce recurrence risk.
🌍 What Happens in Advanced Cancer?
If cancer has already spread to other organs:
👉 Medicines become the primary treatment weapon.
The goals include:
- Controlling cancer growth
- Extending lifespan
- Improving quality of life
This is where medical oncology becomes critically important.
🤝 Why Teamwork Matters in Cancer Treatment
The best cancer care happens when:
- Surgical oncologists
- Radiation oncologists
- Medical oncologists
work together as one team.
This collaborative system is often called:
👉 A Tumor Board Approach
🧠 What Is a Tumor Board?
In a tumor board:
✔️ Multiple cancer specialists discuss the case together
✔️ Treatment is planned collectively
✔️ Patients receive more balanced and personalized care
This approach improves:
- Decision-making
- Treatment accuracy
- Patient outcomes
📈 Modern Cancer Care Is a Team Effort
Cancer treatment is no longer handled by a single doctor alone.
Modern oncology depends on:
👉 Multidisciplinary collaboration
This is one of the biggest reasons cancer treatment outcomes continue to improve.
👨⚕️ Cancer Specialist in Madurai
Dr. Deenadayalan T is a leading oncologist in Madurai focusing on:
- Multidisciplinary cancer care
- Personalized treatment planning
- Advanced oncology treatments
Patients benefit when all specialists work together under a coordinated cancer care approach.
✅ Final Takeaway
Here’s the simplest way to understand it:
- Surgical oncologist → removes cancer
- Radiation oncologist → destroys cancer using radiation
- Medical oncologist → controls cancer using medicines
👉 When all three work together, patients get the best possible care.
That’s the future of modern oncology.