Pharyngeal Cancer
Diagnosis
To find the cause of pharyngeal cancer symptoms, a doctor evaluates a person’s medical history, performs a physical examination, and orders diagnostic tests. The exams and tests conducted may vary depending on the pharyngeal cancer symptoms. Some exams and tests that may be useful are described below:
Physical examination may include visual inspection of the oral and nasal cavities, neck, throat, and tongue using a small mirror and/or lights. The doctor may also feel for lumps on the neck, lips, gums, and cheeks.
Endoscopy is the use of a thin, lighted tube called an endoscope to examine areas inside the body. The type of endoscope the doctor uses depends on the area being examined. For example, a laryngoscope is inserted through the mouth to view the larynx; an esophagoscope is inserted through the mouth to examine the esophagus; and a nasopharyngoscope is inserted through the nose so the doctor can see the nasal cavity and nasopharynx to help with pharyngeal cancer diagnosis.
Laboratory tests examine samples of blood, urine, or other substances from the body.
X-rays create images of areas inside the head and neck on film.
CT (or CAT) scan is a series of detailed pictures of areas inside the head and neck created by a computer linked to an x-ray machine.
Magnetic resonance imaging (or MRI) uses a powerful magnet linked to a computer to create detailed pictures of areas inside the head and neck.
Biopsy is the removal of tissue for examination under a microscope. A pathologist studies the tissue to make a diagnosis of pharyngeal cancer. A biopsy is the only sure way to tell whether a person has pharyngeal cancer.
If the diagnosis is cancer, the doctor will want to learn the stage (or extent) of disease. Staging is a careful attempt to find out whether the cancer has spread and, if so, to which parts of the body. Staging may involve surgery, x-rays and other imaging procedures, and laboratory tests. Knowing the stage of the disease helps the doctor plan pharyngeal cancer treatment.