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2023年6月1日 (木) 16:44時点における最新版
Laryngeal Cancer and the Railroad
Larynx cancers are referred to as squamous cells carcinomas. They are slow-growing and often are not detected by the patient.
In cohort studies, those who have been exposed to asbestos have a higher chance of developing this type of cancer. These studies have included a wide range of occupations and industrial activities.
Risk Factors
Every year, railroad workers transport 30 million people to their destinations and transport 1.6 billion tons of freight. They work in dangerous conditions which can increase their risk of developing cancer and other illnesses. Railroad workers are exposed to a variety of substances including diesel exhaust and coal smoke. They also use hazardous chemicals to clean their tracks and engines. These chemicals increase the chance of contracting certain types cancers, including laryngeal cancer.
Asbestis exposure is associated with increased risk of laryngeal cancer in studies of cohorts and case-control analyses. These increases are due to both cumulative and acute exposures, and some evidence suggests that the risk is related to the level of asbestos exposure. In one study the risk of exposure to asbestos was higher than the risk of alcohol and smoking combined. Other studies have shown similar results, and a few have indicated the risk of exposure to asbestos is higher for males than women (Jemal et.al. 1998, Muscat and Wynder 1992).
Other factors that increase the risk of developing laryngeal cancer are alcohol and tobacco use. A history of squamous cell carcinoma of the glottis an additional risk factor. This kind of cancer is difficult to identify because it typically does not cause any symptoms at the beginning. There are certain indications and symptoms you should never ignore and should be evaluated by your doctor.
Signs and symptoms
Laryngeal cancer occurs when cancerous cells develop in the region that helps you breathe, speak and swallow. The area is called the larynx. It's located in your throat near the top of your windpipe (trachea). Larynx cancers can start in the supraglottis (where one third of laryngeal cancers start), in the glottis (where two narrow bands vibrate to produce sound), or in the subglottis (where the majority of laryngeal cancers start).
The most common indication of cancer in the larynx is the voice becoming hoarse. It could be caused by other conditions, including a viral infection, however it's essential to consult your doctor if you've suffered from a hoarse voice for more than three weeks. Other symptoms include pain when swallowing, speaking, coughing, or trouble breathing. Sometimes, the cancer may be spread to lymph nodes that are located in your neck.
Railroad workers are more at risk risk of developing laryngeal cancer because they frequently work with harmful chemicals such as perchloroethylene (PCE), which can cause irritation to the lining of the throat. In addition, exposure to asbestos can increase the chance of developing laryngeal cancer. Doran & Murphy settled a lawsuit in the past on behalf of a railroad employee who was diagnosed with throat carcinoma after being exposed diesel exhaust and asbestos while working on locomotive engines. He was a machinist and engine mechanic with over 30 years of experience.
Diagnosis
A physical examination of the neck and throat is a way to detect laryngeal cancer. A doctor will check for lumps in the neck and throat and may utilize a mirror in order to get an even better view of the throat and larynx.
A medical history will also be taken and the doctor will inquire if you've been diagnosed with any other health issues. You may require blood tests or an CT scanner to determine if the cancer has developed.
The stage of cancer will tell your health care provider if it has spread to lymph glands. The stage of the cancer may also aid your team in deciding on the treatment you require.
Laryngeal cancer in its early stages is usually treated by radiation therapy and surgery. The procedure may involve the removal of any or all of the larynx. Radiotherapy employs controlled doses to kill cancerous cell. Sometimes, it is combined with chemotherapy.
Smokers and drinkers of alcohol are more likely to develop laryngeal cancer than women. People who work in industries such as locomotive engineering, which produces steel and burns fuel, Railroad laryngeal cancer are more likely to be affected by laryngeal cancer. It is also more likely to happen in people who have been exposed to sulfuric acid dust from power plants or wood dust.
Treatment
The prognosis for laryngeal carcinoma is based on the size the cancer at the time it is first discovered and its location in the larynx, and whether it has spread. It is also dependent on the type and the severity (how abnormal the cancer cells look under the microscope) of the cancer.
Railroad laryngeal cancer usually starts in the squamous cells which are found in the throat. Early stages of these cancers are not likely to grow. When the cancer is at stage 3, it could be growing into tissues near the larynx, such as the thyroid or food pipe, or into nearby lymph nodes. It could have spread to other parts.
There are a variety of treatments available for laryngeal cancer depending on the type of cancer and stage of the cancer. If the cancer is in the early stages it is possible to undergo surgery or radiation therapy to be the cure.
For cancers that are more advanced, treatment options include laser surgery as well as surgery with or without chemotherapy. Laryngectomy is a surgical procedure that preserves the voice of certain patients suffering from laryngeal carcinoma. This involves the removal of the tumor as well as the entire voice box, Railroad Laryngeal Cancer along with some lymph nodes in the neck.
People who smoke or drink alcohol are more likely to develop laryngeal cancer, and having a family history of the disease can increase the chances of getting it. However, a healthy diet with plenty of vegetables and fruits can help lower the risk.