Throat Cancer Treatment in Delhi, India

Throat cancer refers to the abnormal growth of malignant cells in the throat, voice box, or tonsils. The throat, medically termed the pharynx, is a muscular tube that begins behind the nose and ends at the top of the oesophagus or food pipe. Throat cancer can also affect the larynx (voice box), a structure that houses the vocal cords essential for speech.

This condition typically originates in the thin, flat cells lining the throat or voice box, known as squamous cells. Throat cancer is categorised as either pharyngeal cancer or laryngeal cancer, depending on its specific location. Though relatively rare compared to other cancers, throat cancer requires early detection and appropriate treatment for the best outcomes.

Throat cancer is broadly classified based on its location and the type of cells it affects. The primary types include:

Pharyngeal Cancer

This type affects the pharynx, the hollow tube running from the back of the nose to the top of the oesophagus. It is further divided into:

• Nasopharyngeal Cancer: Occurs in the upper part of the throat, behind the nose.
• Oropharyngeal Cancer: Affects the middle part of the throat, including the back of the mouth, tonsils and the base of the tongue.
• Hypopharyngeal Cancer: Develops in the lower part of the throat, near the oesophagus.

Laryngeal Cancer

This type arises in the larynx, commonly known as the voice box. The larynx contains the vocal cords and plays a crucial role in speech and breathing.

Each type requires a unique approach to diagnosis and treatment, making early detection essential to ensure better health outcomes.

Throat cancer develops when healthy cells in the throat or voice box undergo genetic changes, causing them to grow uncontrollably. While the exact cause of these mutations is often unclear, several factors have been linked to the development of throat cancer, including:

• Tobacco Use: Smoking or chewing tobacco is one of the leading causes of throat cancer.
• Excessive Alcohol Consumption: Drinking alcohol in large amounts, especially when combined with smoking, significantly increases the risk.
• Human Papillomavirus (HPV): Certain strains of HPV are associated with oropharyngeal cancer.
• Poor Nutrition: A diet lacking in fruits and vegetables may contribute to cellular damage.
• Exposure to Carcinogens: Long-term exposure to industrial chemicals, asbestos, or other harmful substances can elevate the risk.
• Gastroesophageal Reflux Disease (GERD): Chronic acid reflux can irritate the throat lining, potentially leading to cancer.

Understanding these causes is the first step in identifying risk factors and adopting preventive measures to lower the chances of developing throat cancer.

Certain factors can increase the likelihood of developing throat cancer. Being aware of these risks can help in early detection and prevention. Key risk factors include:

• Tobacco Use: Smoking or chewing tobacco is one of the leading causes of throat cancer.
• Excessive Alcohol Consumption: Drinking alcohol in large amounts, especially when combined with smoking, significantly increases the risk.
• Human Papillomavirus (HPV): Certain strains of HPV are associated with oropharyngeal cancer.
• Poor Nutrition: A diet lacking in fruits and vegetables may contribute to cellular damage.
• Exposure to Carcinogens: Long-term exposure to industrial chemicals, asbestos, or other harmful substances can elevate the risk.
• Age and Gender: People aged 50 and above, particularly men, are at a higher risk of throat cancer.
• Chronic Acid Reflux (GERD): Chronic acid reflux can irritate the throat lining, potentially leading to cancer.
• Weakened Immune System: A compromised immune system makes individuals more vulnerable to infections like HPV, which may result in cancer.

By addressing these risk factors, individuals can take proactive steps toward reducing their chances of developing throat cancer.

Throat cancer symptoms often vary depending on the type and stage of the disease. While some may resemble common throat infections, persistent symptoms should not be ignored. Key symptoms include:

• Persistent Sore Throat: A sore throat that does not improve over time.
• Hoarseness or Voice Changes: Noticeable changes in the voice, such as hoarseness, lasting more than a few weeks.
• Difficulty Swallowing: Pain or discomfort when swallowing food or liquids.
• Lump in the Neck or Throat: The presence of a lump that does not subside.
• Chronic Cough: A persistent cough, sometimes accompanied by blood.
• Ear Pain: Pain in one or both ears that does not seem connected to an ear infection.
• Unexplained Weight Loss: Significant weight loss without any apparent cause.
• Breathing Difficulties: A feeling of obstruction or difficulty in breathing, sometimes noisy breathing may be there
• Bad Breath (Halitosis): Persistent foul-smelling breath, even with good oral hygiene.

If you experience any of these symptoms for an extended period, consult a healthcare professional for proper evaluation and diagnosis.

Accurate diagnosis of throat cancer involves a combination of physical examinations, imaging tests, and biopsies. Early diagnosis is essential for effective treatment. The key diagnostic steps include:

Physical Examination

During a physical examination, the doctor examines the patient's throat, mouth, and neck for abnormalities, using a mirror or laryngoscope for closer inspection.

Imaging Tests

• CT Scan: Provides detailed cross-sectional images to check for tumour size and spread.
• MRI: Offers high-resolution images to identify tumours in soft tissues.
• PET Scan: Detects cancerous activity and helps determine if the cancer has spread to other areas.
• X-rays: Helps evaluate the chest and throat for abnormalities.

Biopsy

To confirm the presence of cancer cells, a sample of tissue is collected and examined under a microscope. This process can involve methods such as fine-needle aspiration or surgical biopsy, where a small piece of tissue is extracted for analysis.

Endoscopy

A thin, flexible tube with a camera is inserted into the throat to provide a detailed view of the affected areas.

HPV Testing

For cases linked to oropharyngeal cancer, testing for human papillomavirus (HPV) may be recommended.

A thorough diagnosis not only confirms the presence of throat cancer but also determines its type and stage, enabling the development of an effective treatment plan.

Throat cancer is classified into stages based on the size of the tumour, its spread to nearby tissues, and whether it has metastasised to other parts of the body. Understanding the stages helps doctors plan the most effective treatment. The stages are:

• Stage 0 (Carcinoma in Situ) : Abnormal cells are present only in the lining of the throat and have not spread to deeper tissues or other areas.
• Stage I : The tumour is small (2 cm or less) and confined to the area where it started, without any spread to lymph nodes or distant organs.
• Stage II : The tumour is larger (2-4 cm) but remains localised to the throat or voice box. It has not reached the lymph nodes.
• Stage III : The cancer has grown beyond the throat or voice box and may have spread to a nearby lymph node (less than 3 cm in size).
• Stage IV : Divided into three subcategories (IVA, IVB, and IVC):
• Stage IVA: The tumour has invaded nearby tissues or multiple lymph nodes.
• Stage IVB: The tumour has spread extensively to surrounding tissues or larger lymph nodes.
• Stage IVC: The cancer has metastasised to distant parts of the body, such as the lungs or bones.

Staging provides a comprehensive understanding of the severity of the cancer and guides the selection of appropriate treatment options.

The treatment for throat cancer varies based on factors like the cancer's location, size, stage, and the patient’s overall health. Several treatment options are available, and often, a combination of treatments is used to achieve the best results.

Surgery

Surgery is one of the most common treatments for throat cancer, particularly in the early stages, and can involve the removal of part or all of the affected area. Surgical options include:

• Laser Resection: some pharyngeal lesions and early laryngeal cancers may be suitable for resection via laser. Advantage of laser is that it causes lesser damage to adjoining soft tissues, does allowing preservation of functions and early healing
• Trans-oral robotic surgery: some of these cancers may be removed with the help of a surgical robot. This prevents extensive dissection, aids early healing and function preservation.
• Partial Laryngectomy: This procedure involves removing part of the larynx (voice box), typically in cases where the tumour is located in the larynx. This surgery may impact the patient's voice but allows for the preservation of some vocal function.
• Total Laryngectomy: In cases where the tumour affects the entire larynx, total removal of the voice box may be required. This procedure often results in the loss of the ability to speak normally, but patients can be trained to use alternative methods of communication, such as an artificial larynx or esophageal speech.
• Pharyngectomy: If the cancer involves the pharynx (throat), part or all of the pharynx may be removed. This surgery can affect swallowing, and patients may need assistance with eating and drinking after recovery.
• Neck Dissection: If the cancer has spread to nearby lymph nodes, a neck dissection may be performed to remove the lymph nodes for further examination. This helps determine the extent of cancer spread and may also reduce the risk of recurrence.

Radiotherapy (Radiation Therapy)

Radiotherapy is a treatment that uses high-energy radiation to target and destroy cancer cells. It is often used in conjunction with other treatments or as the primary treatment for smaller tumours. Types of radiotherapy include:

• External Beam Radiation: The most common form of radiation therapy, where targeted radiation is delivered from outside the body to the cancerous area.
• Brachytherapy (Internal Radiation): A form of radiation therapy where radioactive sources are placed inside or near the tumour. It is often used for cancers in specific areas like the throat or mouth.

Radiotherapy may also be used after surgery to eliminate any remaining cancer cells and reduce the risk of recurrence. It can be an effective option for patients who are not candidates for surgery or for those with advanced-stage cancer.

Chemotherapy

Chemotherapy involves the use of drugs that kill cancer cells or prevent them from growing. It is often used in combination with radiotherapy for patients with more advanced throat cancer. Chemotherapy may be used in several ways:

• Neoadjuvant Chemotherapy: Administered before surgery to shrink the tumour, making it easier to remove surgically.
• Chemoradiation: A combination of chemotherapy and radiotherapy, often used for more aggressive or advanced cancers. Chemotherapy makes cancer cells more sensitive to radiation, enhancing the overall effectiveness of treatment.
• Palliative Chemotherapy: used for incurable disease.

Targeted Therapy

Targeted therapy is a newer form of treatment that uses drugs to specifically target cancer cells without harming normal healthy cells. This treatment works by targeting specific molecules involved in cancer cell growth. For throat cancer, targeted therapies may be used in the following ways:

• EGFR Inhibitors: These drugs block the epidermal growth factor receptor (EGFR), a protein that cancer cells use to grow and spread. In some cases of throat cancer, EGFR inhibitors are used alongside chemotherapy and radiotherapy to enhance treatment effectiveness.
• Angiogenesis Inhibitors: These drugs prevent the formation of new blood vessels that tumours need to grow and spread, essentially starving the tumour of the nutrients it needs.

Immunotherapy

Immunotherapy is an innovative treatment that helps boost the body's immune system to recognise and fight cancer cells. It works by stimulating the immune system to target cancer cells or by providing artificial immune responses. Immunotherapy options for throat cancer include:

• Checkpoint Inhibitors: These drugs block proteins that prevent the immune system from attacking cancer cells, allowing the immune system to target and destroy the cancer. Checkpoint inhibitors are often used in advanced throat cancers, particularly those linked to HPV.
• Cytokine Therapy: This involves the use of substances like interleukins or interferons that help stimulate the immune system to fight cancer.
• Monoclonal Antibodies: These are laboratory-made molecules that can bind to cancer cells and help the immune system recognise and attack them.

Immunotherapy is typically considered for patients with recurrent or metastatic throat cancer, particularly when other treatments have not been effective.

Throat cancer and its treatments can lead to several complications that impact a patient’s quality of life. The extent and severity of these complications depend on the cancer's location, stage, and the treatments used. Common complications include:

• Difficulty Swallowing (Dysphagia): Throat cancer, especially when it involves the pharynx or larynx, can lead to difficulty swallowing. This may result from the tumour itself or from the side effects of treatments such as surgery or radiation. In severe cases, patients may need a feeding tube to maintain adequate nutrition.
• Voice Changes or Loss: Surgical treatments like laryngectomy or radiation therapy targeting the voice box can cause permanent changes in speech, leading to hoarseness or complete loss of voice. Patients may need speech therapy or alternative communication methods, such as an artificial larynx or esophageal speech.
• Respiratory Issues: If the cancer or its treatment obstructs the airway, it can cause breathing difficulties. Patients who undergo a total laryngectomy may also experience changes in breathing patterns, as the trachea is redirected to an opening in the neck (stoma).
• Lymphoedema: After neck dissection or radiation therapy to the lymph nodes, some patients may experience swelling of the neck and face due to the accumulation of lymph fluid. This condition, known as lymphoedema, can be managed with physical therapy and compression garments.
• Pain and Discomfort: Pain is a common complication after surgery, particularly in the throat and neck area. Additionally, radiation therapy can cause sore throat, mouth ulcers, and discomfort when swallowing. Pain management and supportive care are important for improving comfort.
• Nutritional Deficiencies: Difficulty eating and swallowing can lead to malnutrition. In some cases, patients may require nutritional support through a feeding tube or enteral nutrition to maintain their weight and energy levels.
• Recurrence or Metastasis: Even with successful treatment, throat cancer may return, either in the same location or in other parts of the body (metastasis). Regular follow-up visits and monitoring are essential for detecting any signs of recurrence early.
• Emotional and Psychological Impact: A diagnosis of throat cancer and its treatment can lead to emotional challenges, including anxiety, depression, and stress. Coping with changes in appearance, voice, and lifestyle may require psychological support or counselling.

By addressing these complications early and providing appropriate support, patients can better manage their condition and improve their overall well-being during and after treatment.

While it is not always possible to prevent throat cancer, certain lifestyle changes and habits can significantly reduce the risk of developing this disease. Here are some key preventive measures:

• Avoid Tobacco Products: Smoking and chewing tobacco are the leading causes of throat cancer. Avoiding these habits is one of the most effective ways to reduce your risk. Quitting smoking, even after years of use, can still reduce the risk of throat cancer over time.
• Limit Alcohol Consumption: Excessive alcohol intake, especially when combined with smoking, significantly increases the risk of throat cancer. Limiting or avoiding alcohol can reduce this risk.
• Get Vaccinated Against HPV: The human papillomavirus (HPV), especially HPV types 16 and 18, is linked to throat cancers, particularly oropharyngeal cancer. The HPV vaccine can help prevent infection with these strains and lower the risk of developing throat cancer later in life.
• Eat a Healthy Diet: A diet rich in fruits, vegetables, and whole grains can provide essential nutrients and antioxidants that may help protect cells from cancer-causing damage. Limiting processed foods and red meats can also contribute to overall health and cancer prevention.
• Protect Yourself from Harmful Chemicals: Long-term exposure to carcinogenic substances, such as asbestos, industrial chemicals, and certain environmental pollutants, can increase the risk of throat cancer. If you work with hazardous materials, ensure proper safety measures and wear protective gear to reduce exposure.
• Maintain Good Oral Hygiene: Maintaining good oral hygiene and regular dental check-ups can help prevent infections and maintain a healthy mouth, potentially lowering the risk of developing throat cancer.
• Practice Safe Sexual Behavior: HPV can be transmitted through sexual activity. Practicing safe sex by using condoms can reduce the risk of HPV infection, particularly oral HPV, which is associated with throat cancer.

By adopting these preventive measures, individuals can significantly reduce their risk of throat cancer, leading to a healthier and longer life.

1. What is the survival rate for throat cancer?

The survival rate for throat cancer varies depending on the stage at diagnosis and the overall health of the patient. Early-stage throat cancer has a higher survival rate, while advanced cases may have a lower rate. It's important to discuss individual prognosis with a healthcare provider.

2. How long does recovery take after throat cancer treatment?

Recovery time depends on the type of treatment received and the extent of the cancer. After surgery, recovery may take a few weeks. Radiation therapy and chemotherapy may cause side effects like fatigue and difficulty swallowing, which may improve gradually over time.

3. Can I still talk after throat cancer treatment?

It depends on the extent of treatment. For patients undergoing surgery, especially a laryngectomy (removal of the voice box), permanent voice loss may occur. However, with speech therapy, many patients can learn alternative methods of communication.

4. What are the long-term side effects of throat cancer treatment?

Long-term side effects can include difficulty swallowing, dry mouth, voice changes, and dental problems. Patients may also experience ongoing fatigue, pain, or sensitivity in the treated area. Regular follow-up care and rehabilitation therapies can help manage these issues.

5. Is there a risk of throat cancer recurring after treatment?

Yes, throat cancer can recur, especially if it was diagnosed at an advanced stage. Regular follow-up visits are important to monitor for any signs of recurrence. Early detection can lead to more effective treatment options.

6. Can throat cancer spread to other parts of the body?

Yes, throat cancer can spread (metastasize) to nearby tissues and lymph nodes. It can also spread to distant parts of the body, such as the lungs or bones, especially if the cancer is advanced. Early-stage cancers have a lower likelihood of metastasis.

7. Is there a diet I should follow during throat cancer treatment?

A healthy diet is important during throat cancer treatment to help maintain energy and support healing. Patients should focus on nutrient-dense foods, including soft and moist foods that are easier to swallow if they experience difficulty eating. Nutritional supplements may also be recommended in some cases.

8. What support is available for throat cancer patients and their families?

Emotional and psychological support is crucial for both patients and their families. Support groups, counselling, and social workers can assist with coping strategies, and speech therapists can help patients with communication difficulties. Many hospitals also offer nutritional and rehabilitation services.

9. How can I manage the emotional and psychological impact of throat cancer?

A cancer diagnosis can be emotionally challenging. Counselling, support groups, and stress management techniques such as mindfulness, relaxation exercises, and yoga can help patients and families cope. It's important to seek help when needed and share concerns with healthcare providers.

10. How can I manage pain after throat cancer treatment?

Pain management is an important aspect of recovery. Doctors may prescribe medications to alleviate pain, including pain relievers and throat lozenges. Other methods like warm saline gargles, throat sprays, or even relaxation techniques may help manage discomfort. 

11. Can throat cancer be linked to lifestyle changes I made in the past?

Yes, lifestyle factors such as smoking, alcohol consumption, sexual practices and exposure to carcinogens can contribute to throat cancer. However, it’s important to note that it can take many years for these habits to lead to cancer, and quitting smoking or alcohol can reduce the risk of further complications.

12. What role does HPV play in throat cancer?

Certain strains of the Human Papillomavirus (HPV), especially HPV-16, have been linked to throat cancer, particularly oropharyngeal cancer. Vaccination against HPV is an effective preventative measure to lower the risk of developing HPV-related throat cancer.

13. How will I know if my throat cancer treatment is successful?

Doctors track the success of treatment through follow-up physical appointments and imaging tests. Signs that treatment is working include symptom improvement and no indication of cancer spread. If there are no changes or if symptoms worsen, adjustments to the treatment plan may be necessary.

14. What is a laryngectomy, and why is it performed? 

A laryngectomy is the surgical removal of the voice box (larynx), often performed for advanced throat cancer. This procedure may be necessary if the cancer has spread extensively or cannot be controlled with other treatments. Afterward, patients will need to learn new ways to communicate, such as using a prosthetic or other speech devices.

15. How does throat cancer affect my ability to taste or smell?

Throat cancer and its treatments, particularly radiation and chemotherapy, can impact taste and smell, making food seem bland or unpleasant. These changes can be temporary, but some patients may experience long-lasting effects, requiring adjustments in their eating habits.

16. Are there any complementary therapies that can help during throat cancer treatment? 

Complementary therapies like acupuncture, massage, and herbal remedies may help manage symptoms like nausea, fatigue, and pain during treatment. Always consult your oncologist before starting any complementary therapies to ensure they don’t interfere with your treatment plan.

17. Can throat cancer treatment affect my oral health?

Yes, treatments such as radiation therapy can lead to dry mouth, tooth decay, and other dental issues. It’s important to maintain good oral hygiene, and your healthcare team may recommend regular dental checkups during and after treatment.

18. Can I continue working during throat cancer treatment?

It depends on the type and intensity of treatment. Many patients may need to take time off during chemotherapy or radiation due to side effects like fatigue or difficulty swallowing. Discuss your work schedule with your healthcare team to make appropriate adjustments based on your condition.

19. How do I cope with changes in my appearance after throat cancer treatment?

Changes in appearance, such as scarring or voice loss, can affect self-esteem. It’s important to seek emotional support through therapy or support groups, and patients may also benefit from speech therapy to regain confidence.

Reviewed By Dr. Akshat Malik, Principal Consultant, Cancer Care / Oncology, Surgical Oncology, Head & Neck Oncology, Robotic Surgery on 13 February 2025.