Messenger

Laryngeal Cancer: Causes and Treatments

May 13 / 2026

Laryngeal CancerLaryngeal Cancer

 

Dr. Thanyarada Liamseng

Otolaryngologist (Ear, Nose, and Throat Specialist)

 

 

     Laryngeal Cancer (Laryngeal Cancer) is a malignancy that occurs in the lining of the larynx. While the exact cause is unknown, smoking is a major risk factor because cigarette smoke contains carcinogens.

 

Other Causes of Laryngeal Cancer

Laryngeal cancer can also be caused by other factors:

 

  • Alcohol consumption
  • Chronic inflammation of the throat or larynx
  • Certain types of viral infections
  • Exposure to irritants from toxic smoke, PM 2.5 dust, and industrial chemicals such as sulfur dioxide and lead

 

Symptoms of Laryngeal Cancer

     By the time patients realize something is wrong, they may experience hoarseness. Some may have pain when swallowing, difficulty swallowing, choking, blood-tinged sputum, referred pain to the ear, or a chronic cough. In some cases, a lump may appear in the neck due to lymph node enlargement, often accompanied by breathing difficulties.

 

 

Laryngeal CancerLaryngeal Cancer

 

 

Laryngeal Cancer can be divided into 2 stages:

  • Early Stage: Divided into 2 phases. Mostly presents with hoarseness, localized pain, or pain when swallowing that radiates to the ear.
  • Advanced Stage: Considered Stage 2, which includes phases 3 and 4. A lump in the neck indicates advanced stage where it has spread to the lymph nodes. When swallowing becomes difficult, it has begun spreading to the esophagus/pharynx, leading to fatigue and inability to breathe.

 

 

 

Laryngeal Cancer

 

 

Laryngeal cancer can be treated in several ways, including "surgery."

     Treatment for laryngeal cancer follows protocols ranging from surgery to radiation or chemotherapy. The choice of method depends on the stage. If it's in the early stages, doctors may use radiation therapy, allowing the patient to keep their larynx and return to speaking normally. Surgery combined with chemotherapy may be used for advanced stages; sometimes, all three treatments are used together.

 

Case Study of a Patient with Laryngeal Cancer

     The doctor presents a case study of a patient who underwent surgery for laryngeal cancer. Initially, the patient had unusually persistent hoarseness. Upon examination, a lump was found on one side of the vocal cords, which was in the early stage. However, during the actual surgery, it was found that the lump had spread slightly. After surgically removing only the tumor, the doctor monitored the case for recurrence. If the condition remained concerning, follow-up radiation therapy was administered.

 

Cases where cancer begins to spread outward

     Some cases have already begun spreading outward, often due to long-term hoarseness that was ignored until a coronary artery blockage occurred. In such cases, the doctor must perform a tracheostomy instead of immediate surgery before referring for chemotherapy and radiation. Studies show laryngeal cancer is more common in men aged 50-60 than in women.

 

Can you still speak after surgery?

1.  Case of partial tumor removal

     If diagnosed at an early stage, we can still preserve the larynx by removing only the tumor. Whether using laser radiation or partial surgery, the patient can return to speaking normally, although some hoarseness may remain.

 

2.  Case of surgery in the advanced stage

     In advanced stages (3-4), the doctor may need to remove the entire larynx and leave a breathing hole (stoma) at the front of the neck. Initially after surgery, the patient may feel pain when trying to speak. Communication via writing is required first. Once the wound heals, the patient will be able to speak but without a voice. Therefore, the doctor will provide speech training and close supervision after a total laryngectomy.

 

Methods for Post-Surgery Speech Training

  • Training to speak using air from the esophagus, called "Esophageal Speech"
  • Using an artificial larynx,  called "Electrolarynx," which is a more common method. It looks similar to an electric razor; you simply press it against the neck and vocalize to produce sound. However, the voice will sound somewhat robotic.
  • Using air between the trachea and esophagus to produce a voice when speaking. This can be practiced with laryngeal cancer support groups, as they have the tools and training provided under the supervision of a "Speech Therapist."

 

Preserving Life with the Internal Medicine Department

     The Internal Medicine Department at Ramkhamhaeng Hospital has installed diagnostic cameras that provide clear visualization, along with high-efficiency medical laser technology for radiation and tumor removal. Patients can feel confident in their chances of recovery to near-normal levels. With the upcoming opening of our radiation center, pathologists are also ready to confirm biopsy samples within 30 minutes, allowing doctors to interpret results without waiting for hours.

 

 

There is no absolute prevention, but risk can be reduced by avoiding carcinogens like smoking, alcohol, and irritants. If you have acid reflux, you should treat it promptly to minimize the risk of developing laryngeal cancer as much as possible.