Head and Neck Cancer
What is cancer?
Cancer is a group of many related diseases that begin in cells, the body's basic unit of life. Normally, cells grow and divide to form new cells in an orderly way. They perform their functions for a while, and then they die. Sometimes, however, cells do not die. Instead, they continue to divide and create new cells that the body does not need. The extra cells form a mass of tissue, called a growth or tumor. There are two types of tumors: benign and malignant. Benign tumors are not cancer. They do not invade nearby tissue or spread to other parts of the body. Malignant tumors are cancer. Their growth invades normal structures near the tumor and spreads to other parts of the body. Metastasis is the spread of cancer beyond one location in the body.
What kinds of cancers are considered cancers of the head and neck?
Most head and neck cancers begin in the cells that line the mucosal surfaces in the head and neck area, e.g., mouth, nose, and throat. Mucosal surfaces are moist tissues lining hollow organs and cavities of the body open to the environment. Normal mucosal cells look like scales (squamous) under the microscope, so head and neck cancers are often referred to as squamous cell carcinomas. Some head and neck cancers begin in other types of cells. For example, cancers that begin in glandular cells are called adenocarcinomas.
Cancers of the head and neck are further identified by the area in which they begin:
Viewers share their comments
Head and Neck Cancer - Causes Question: If known, what was the cause of your head or neck cancer?
Head and Neck Cancer - Symptoms Question: What were the symptoms associated with your head or neck cancer?
Head and Neck Cancer - Diagnosis Question: Please describe the exams and tests that led to a diagnosis of head or neck cancer.
Head and Neck Cancer - Treatment Question: What kinds of treatment, surgery, or medication did you receive for your head or neck cancer?
Head and Neck Cancer - Causes Question: As a survivor of head or neck cancer, please describe your follow-up treatments.
Get the latest health and medical information delivered direct to your inbox FREE!