'Mouth cancer,' refers to cancer that develops in any portion of a person's mouth. Mouth cancer may occur on a person's lips, tongue, gums, inside lining of their cheeks, the floor or roof of a person's mouth. Cancer that occurs on the inside of the mouth is at times referred to as, 'oral cancer,' or, 'oral cavity cancer.'
Mouth cancer is one of a number of forms of cancer grouped into a category called, 'head and neck cancers.' Mouth cancer and other head and neck cancers are many times treated in a similar fashion. Mouth cancer has a number of symptoms associated with it, such as:
Causes of Mouth Cancer
Mouth cancer occurs when cells on a person's lips or in their mouth develop mutations in their DNA. The mutations allow cancer cells to grow and divide when cells that are healthy would die. The accumulating mouth cancer cells may form a tumor. Over a period of time, they might spread to additional areas of a person's mouth and on to other areas of their neck and head, or other parts of the person's body.
Mouth cancers most often start in the flat and thin cells that line a person's lips and the inside of their mouth. The majority of oral cancers are squamous cell carcinomas. It is not clear what causes the mutations in squamous cells that lead to mouth cancer, yet doctors have identified factors that might increase someone's risk of mouth cancer.
Mouth Cancer Types
'Mouth cancer,' is a general term that applies to cancers that occur on a person's lips and throughout their mouth. Terms for these forms of cancer that are more specific include the following:
Risk Factors for Mouth Cancer
Some different risk factors for mouth cancer exist. These risk factors can increase a person's chance of mouth cancer and include:
Questions a Doctor May Ask
A doctor is likely to ask a person with mouth cancer several questions. Being ready to answer these questions might allow more time later to cover points an affected person wants to address. For example, a doctor might ask:
It is important to avoid doing things that worsen your signs and symptoms. If you experience pain in your mouth, avoid spicy foods or hard foods that might cause additional irritation. If you are having difficulties with eating due to pain, consider drinking nutritional supplement drinks. The drinks can provide the nutrition you require until you can meet with your doctor or dentist.
Mouth Cancer Tests and Diagnosis
A couple of different tests are available to diagnose mouth cancer. These tests and procedures include the following:
A Physical Examination: A doctor or dentist will examine your lips and mouth to look for things such as sores, areas of irritation, or white patches known as, 'leukoplakia.'
Removal of Tissue for Testing: If a suspicious area is discovered, a doctor or dentist might remove a sample of cells for laboratory testing in a procedure referred to as a, 'biopsy.' Unusual cells may be scraped away with a brush, or cut away using a scalpel. In the laboratory, the cells are analyzed for precancerous changes that indicate a risk of future cancer, or cancer itself.
Stages of Mouth Cancer
After a person has been diagnosed with mouth cancer, a doctor works to determine the stage or extent of the mouth cancer. Mouth cancer staging tests might include:
Using a Scope to Inspect Your Throat: During a procedure called, 'endoscopy,' a doctor might pass a lighted scope down the affected person's throat to look for signs that cancer has spread beyond the person's mouth.
Imaging Tests: A number of imaging tests may assist with determining whether cancer has spread beyond the person's mouth. Imaging tests may include X-rays, magnetic resonance imaging (MRI), computerized tomography scans (CT), or positron emission tomography (PET) scans. Not everyone requires each type of test; a doctor determines which ones are appropriate based upon the person's condition.
Stages of mouth cancer are indicated using Roman numerals I through IV. A lower stage indicates a smaller cancer confined to one area. A higher stage, such as stage IV, indicates a larger tumor, or that cancer has spread to additional areas of the person's neck, head, or other parts of their body. A person's cancer stage helps their doctor to determine the person's treatment options.
Mouth Cancer Treatments and Medications
Treatment for mouth cancer is dependent upon the cancer's stage and location, as well as the person's overall health and their personal preferences. The person might have only one type of treatment, or they may undergo a combination of cancer treatments. It is important for the person to discuss their options with their doctor.
Surgery and Mouth Cancer
Surgery for mouth cancer might include some different goals. The goals of a surgeon in relation to the mouth cancer a person experiences might include the following:
Surgery to Remove Cancer that has Spread to the Neck: If cancer cells have spread to the lymph nodes in a person's neck, their surgeon might recommend a procedure to remove cancerous lymph nodes and related tissue in their neck.
Tumor Removal Surgery: A surgeon may cut away the tumor and a margin of healthy tissue surrounding it. Smaller cancers might be removed through minor surgery. Larger tumors may need more extensive procedures. For example; removing a larger tumor might involve removing a section of the person's jawbone, or a part of their tongue.
Surgery to Reconstruct the Mouth: Following an operation to remove the person's cancer, their surgeon might recommend reconstructive surgery to restore the appearance of the person's face, or to help the person regain the ability to eat and talk. The surgeon may transplant grafts of skin, bone, or muscle from other parts of the person's body to reconstruct their face. Dental implants might be used to replace the person's natural teeth.
Bear in mind that surgery carries with it a risk of infection and bleeding. Surgery for mouth cancer often times affects a person's appearance, as well as their ability to eat, swallow, or speak. A doctor might refer the person to a specialist who can assist the person with coping with the changes.
Mouth Cancer and Radiation therapy
Radiation therapy uses high-energy beams such as X-rays to kill cancer cells. Radiation therapy may be delivered from a machine outside of the person's body, or from radioactive, 'seeds,' and wires placed near to the person's cancer. Radiation therapy may be the only treatment a person receives if they have an early-stage mouth cancer.
Radiation therapy can also be used following surgery. In other instances, radiation therapy might be combined with chemotherapy. The combination increases the effectiveness of radiation therapy, yet also increases the side-effects the person may experience. In instances of advanced mouth cancer, radiation therapy might help to relieve the signs and symptoms caused by the cancer such as pain. Side-effects of radiation therapy to a person's mouth may include:
Mouth Cancer and Chemotherapy
Chemotherapy is a type of treatment that uses chemicals to kill cancer cells. Chemotherapy drugs may be administered alone, in combination with other chemotherapy drugs, or in combination with other types of cancer treatments. Chemotherapy might increase the effectiveness of radiation therapy, so the two are often combined. Side-effects of chemotherapy depend on which drug the person receives. Common side-effects include nausea, vomiting and loss of hair.
Targeted Drug Therapy and Mouth Cancer
Targeted drugs treat mouth cancer by altering specific aspects of cancer cells that fuel their growth. 'Cetuximab,' is one targeted drug therapy that has been approved for the treatment of neck and head cancers in some situations. Cetuximab stops the action of a protein that is found in a number of types of healthy cells, but is more prevalent in some types of cancer cells. Additional targeted drugs are being studied in clinical trials. Targeted drugs may be used in combination with radiation or chemotherapy.
Burgundy and White/Ivory are the awareness ribbon colors for head & Neck cancers, Oral Squamous Cell Carcinoma, Throat Cancer, Laryngeal Cancer and Pharyngeal Cancer. The Head and Neck Cancer Alliance has designated April 12-18 as Oral Head and Neck Cancer Awareness Week, and the month of April is National Oral Cancer Awareness Month. Approximately 45,750 people in the U.S. will be newly diagnosed with oral cancer this year, and one person every hour in the U.S. will die from it.
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