A gastrointestinal cancer diagnosis can raise many questions:
Will I need chemotherapy?
Will I need surgery?
Could immunotherapy be an option?
Do I need molecular or biomarker testing?
There is no single treatment plan that applies to every gastrointestinal cancer patient.
Treatment depends on the cancer type, stage, tumour characteristics, previous treatment, overall health and individual clinical circumstances.
At Precision Oncology Clinic, Bangalore, Dr. Vivek Belathur, Medical Oncologist & Haematologist, is part of a multidisciplinary cancer care team.
What Are Gastrointestinal Cancers?
Gastrointestinal cancers include cancers affecting different parts of the digestive system, including:
- Oesophagus
- Stomach
- Small intestine
- Colon
- Rectum
- Liver
- Pancreas
- Bile ducts
- Gallbladder
- Other digestive organs
The National Cancer Institute groups cancers of the colon, rectum, oesophagus, stomach, liver and pancreas among gastrointestinal cancers.
Because these cancers are biologically different, their treatments can also be very different.
When Is Medical Oncology Involved?
A Medical Oncologist manages cancer treatments that work throughout the body.
Depending on the cancer, systemic treatment can include:
- Chemotherapy
- Immunotherapy
- Targeted therapy
- Hormonal treatment for selected cancers
- Other specialised systemic treatments
These treatments may be used before surgery, after surgery, together with radiation, as the main treatment for certain cancers, or for advanced disease.
For example, treatment options for pancreatic cancer can include surgery, chemotherapy, radiation therapy, chemoradiation and targeted therapy depending on the individual clinical situation.
Does Everyone With GI Cancer Need Chemotherapy?
No.
Whether chemotherapy is recommended depends on factors such as:
- Cancer type
- Stage
- Tumour biology
- Whether the tumour can be surgically removed
- Lymph-node involvement
- Spread to other organs
- Previous treatments
- Overall health
The treatment plan should therefore be individualised rather than based only on the name of the cancer.
What Is Immunotherapy?
Immunotherapy uses medicines that help the immune system recognise and attack cancer cells.
It is not suitable for every cancer or every patient.
In selected gastrointestinal cancers, immunotherapy may be considered depending on the tumour type, stage and relevant molecular or biomarker information.
This is why discussing pathology and, when appropriate, biomarker testing with a Medical Oncologist can be important.
Why Are Biomarkers Important?
Modern oncology increasingly looks beyond the organ where a cancer started.
Depending on the cancer, doctors may consider molecular or biomarker information to determine whether a targeted treatment or immunotherapy could be appropriate.
This does not mean every patient needs every available test.
The relevance of testing depends on the diagnosis and clinical context.
GI Cancer Treatment Is Often a Team Decision
A patient with gastrointestinal cancer may need:
Surgical Oncologist
To assess whether surgery is possible and appropriate.
Medical Oncologist
To assess systemic treatment.
Radiation Oncologist
To determine whether radiation should be included.
Pathologist
To establish the cancer diagnosis and relevant tumour characteristics.
Radiologist
To interpret imaging and assist with staging and treatment planning.
Multidisciplinary care allows these perspectives to be considered together. Precision Oncology Clinic describes its cancer care model around medical, surgical and radiation oncology expertise.
Meet Dr. Vivek Belathur
Dr. Vivek Belathur is a Medical Oncologist & Haematologist at Precision Oncology Clinic, Bangalore. The clinic’s published profile identifies him as a specialist in medical oncology, haematology and personalised systemic cancer treatment.
His role in a GI cancer care pathway may involve helping patients understand:
- Whether systemic treatment is required
- Which treatment options may be relevant
- Whether chemotherapy has a role
- Whether targeted therapy or immunotherapy may be appropriate
- How treatment fits with surgery and radiation
- How treatment response and side effects are monitored
Questions to Ask Your Medical Oncologist
Before starting treatment, patients may want to ask:
- What type of cancer do I have?
- What stage is it?
- Is the cancer localised or has it spread?
- Is surgery possible?
- Why are you recommending chemotherapy?
- Could immunotherapy or targeted treatment be relevant?
- Is biomarker testing appropriate?
- How will treatment response be monitored?
- What side effects should I expect?
- Should another oncology specialist be involved?
Frequently Asked Questions
Is chemotherapy the same for every GI cancer?
No. Treatment varies considerably between cancer types and individual patients.
Is immunotherapy suitable for everyone?
No. Its use depends on the cancer type, stage and relevant clinical or biomarker factors.
Can I seek a second opinion?
Yes. A second opinion can be useful when a diagnosis is complex or when you want greater clarity about treatment options. NCI also notes that patients may seek a second opinion for cancer treatment decisions.
Can treatment involve multiple therapies?
Yes. Surgery, systemic treatment and radiation may sometimes be combined depending on the cancer and treatment objective.
Author / Medical Review
Medical Specialist: Dr. Vivek Belathur
Speciality: Medical Oncology & Haematology
Clinic: Precision Oncology Clinic, Bangalore
This article is for general education and does not replace personalised medical advice.
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🌐 https://precisiononcologyclinic.com/gastrointestinal-cancer-treatment/
