Radiation Oncology in Howrah

Radiation Oncology

Radiation oncology is a specialized branch of cancer care that uses carefully planned radiation therapy to treat cancer and, in some cases, relieve symptoms caused by advanced cancer. Radiation treatment may be used on its own or combined with surgery, chemotherapy, immunotherapy, targeted therapy, or other cancer treatments depending on the type and stage of cancer.

A radiation oncologist evaluates the cancer diagnosis, location, size, stage, overall health, and previous treatments before developing an individualized treatment plan. Modern radiation therapy is designed to deliver radiation precisely to the treatment area while limiting exposure to surrounding healthy tissues as much as possible.

What Is Radiation Oncology?

Radiation oncology focuses on the medical use of radiation to treat cancer. Radiation therapy works by damaging the DNA of cancer cells, preventing them from continuing to grow and divide. Treatment may be recommended with the goal of controlling or eliminating cancer, reducing the risk of recurrence, or managing cancer-related symptoms.

Radiation therapy can be an important part of treatment for several cancers, including cancers of the breast, prostate, lung, head and neck, brain, cervix, uterus, rectum, oesophagus and other parts of the body.

The appropriate treatment depends on the individual patient's diagnosis and is determined by the oncology team after a detailed evaluation.

Radiation Therapy for Cancer

Radiation therapy for cancer can be delivered in different ways depending on the location and characteristics of the tumour.

Common approaches include:

• External beam radiation therapy – Radiation is delivered from a treatment machine outside the body and directed toward the tumour.
• Intensity-Modulated Radiation Therapy (IMRT) – Uses varying radiation intensity to shape the treatment dose around the tumour and help protect nearby normal tissues.
• Image-Guided Radiation Therapy (IGRT) – Uses imaging during treatment to help accurately position and target the treatment area.
• Stereotactic radiation therapy – Delivers highly focused radiation to selected tumours in fewer treatment sessions when clinically appropriate.
• Brachytherapy – A radiation source is placed inside or close to the treatment area to deliver radiation directly to the targeted tissue.
• Palliative radiation therapy – May be used to help relieve symptoms such as pain or bleeding associated with certain advanced cancers.

Not every technique is suitable for every patient. The radiation oncologist selects the approach based on the cancer type, tumour location, treatment objective and individual clinical factors.

Cancers Treated With Radiation Therapy

Radiation oncology may be part of the treatment plan for several types of cancer, including:

• Breast cancer
• Prostate cancer
• Lung cancer
• Head and neck cancers
• Brain and spinal tumours
• Cervical cancer
• Uterine and endometrial cancers
• Rectal and anal cancers
• Oesophageal cancer
• Skin cancers
• Lymphomas
• Bone and soft-tissue tumours
• Certain childhood cancers

Radiation therapy may be used at different stages of cancer treatment. For some patients, it may be given before surgery to shrink a tumour, after surgery to reduce the risk of cancer returning, or alongside other treatments. In advanced cancer, radiation can sometimes be used to control a tumour or manage symptoms.

What Happens During Radiation Treatment?

Radiation treatment usually begins with a consultation and treatment-planning process. The radiation oncologist reviews diagnostic scans, pathology reports and other medical information to determine whether radiation therapy is appropriate.

A planning scan, often a CT scan, may be performed to identify the treatment area and help create an individualized radiation plan. The radiation oncology team then determines the treatment dose, treatment field and schedule.

During an external radiation therapy session, the patient is positioned carefully on the treatment table while the radiation therapy machine delivers the planned dose. The treatment itself is generally brief, although preparation and positioning can take additional time.

Radiation therapy is typically delivered over multiple sessions, although some treatment plans may involve only a small number of sessions. The schedule depends on the cancer type, treatment goal and prescribed radiation dose.

Radiation Therapy Side Effects

Side effects vary depending on the treatment area, radiation dose, treatment schedule and individual health. Some patients experience few side effects, while others may develop symptoms during or after treatment.

Possible side effects can include:

• Tiredness or fatigue
• Skin changes in the treated area
• Hair loss in the treatment area
• Nausea or appetite changes
• Mouth or throat discomfort when treating certain areas
• Changes in bowel or bladder habits depending on the treatment site

Many side effects are temporary, but some can persist or develop later. The oncology team monitors patients throughout treatment and can recommend appropriate measures to manage treatment-related symptoms.

Patients should report new, severe, or worsening symptoms to their healthcare team rather than trying to manage significant side effects without medical guidance.

Preparing for Radiation Therapy

Preparation varies according to the type and location of treatment. Patients may be asked to undergo imaging, blood tests, or other evaluations before treatment begins.

During the consultation, patients can discuss:

• The purpose and expected goal of radiation therapy
• The proposed treatment technique
• Number and frequency of treatment sessions
• Possible side effects
• Other cancer treatments being considered
• Medicines and supplements currently being taken
• Follow-up and monitoring plans

Keeping all medical records, scan reports, pathology results and medication information available can help the oncology team make informed treatment decisions.

Recovery and Follow-Up Care

Recovery after radiation therapy depends on the treatment site, dose, overall health and whether other cancer treatments are being given at the same time. Some people return to normal activities relatively quickly, while others may need additional time to recover.

Follow-up appointments allow the oncology team to monitor recovery, assess treatment response, manage ongoing side effects and determine the need for further investigations or treatment.

Long-term follow-up may also be recommended because certain treatment effects can occur months or years after radiation therapy.

Why Choose a Specialized Radiation Oncology Team?

Radiation treatment requires careful coordination between radiation oncologists, medical physicists, radiation therapists, medical oncologists, surgeons, radiologists, pathologists, nurses and other healthcare professionals.

A specialized radiation oncology team evaluates the patient's cancer from multiple perspectives and coordinates treatment planning, radiation delivery, symptom management and follow-up care. This multidisciplinary approach can be particularly important when radiation therapy is combined with surgery or systemic cancer treatments.

When Should You Consult a Radiation Oncologist?

A consultation with a radiation oncologist may be recommended after a cancer diagnosis when radiation therapy could be part of the treatment plan. Patients may also be referred to radiation oncology before or after surgery, alongside chemotherapy or other systemic treatments, or when radiation may help manage symptoms from advanced cancer.

A radiation oncologist can explain whether radiation therapy is appropriate, what treatment options may be available, what the expected benefits and risks are, and how treatment may fit into the overall cancer care plan.

Frequently Considered Questions

Is radiation therapy used only for advanced cancer?

No. Radiation therapy can be used at different stages of cancer treatment. Depending on the cancer, it may be used before surgery, after surgery, together with other treatments, as the main treatment, or to relieve symptoms.

How long does radiation therapy take?

The treatment duration varies considerably. Some radiation treatment plans require several weeks of sessions, while selected cancers may be treated using fewer sessions. The radiation oncologist determines the schedule based on the treatment objective and clinical circumstances.

Does radiation therapy hurt?

The radiation delivery itself is generally not felt. However, side effects can develop during or after a course of treatment depending on the treatment area and radiation dose.

Can radiation therapy be combined with chemotherapy?

Yes. For certain cancers, radiation therapy may be combined with chemotherapy or other cancer treatments. The treatment plan depends on the cancer type, stage and patient's overall condition.

What should I ask my radiation oncologist?

Useful questions include why radiation is being recommended, what treatment technique will be used, how many sessions may be required, possible short- and long-term side effects, how treatment may interact with other therapies, and what follow-up care will be needed.