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If you have symptoms of laryngeal cancer, such as a hoarse voice and pain when swallowing, your GP will ask about your symptoms and recent medical history.
They may also examine the inside and outside of your throat for abnormalities, such as lumps and swellings.
If laryngeal cancer is suspected, you'll probably be referred to the ear, nose and throat (ENT) department of your local hospital for further testing.
The National Institute for Health and Care Excellence (NICE) recommends that anyone aged 45 or over with persistent unexplained hoarseness or an unexplained lump in their neck should have an appointment with a specialist within two weeks.
The main tests that may be carried out in hospital are described below.
A nasendoscopy is a procedure used to get a clear view of your larynx.
During the procedure, a small, flexible tube with a light and video camera at one end (endoscope) is inserted into one of your nostrils and passed down the back of your throat. The images from the endoscope are displayed on a monitor.
You'll usually be awake while this is carried out and it may feel uncomfortable. A local anaesthetic spray is sometimes used to numb your nose and throat beforehand, so you don't feel any pain.
If it wasn't possible to get a good view of your larynx during a nasendoscopy, or a possible problem is spotted, you may have a further test called a laryngoscopy.
Like a nasendoscopy, this procedure involves using an endoscope to examine your larynx. However, the endoscope used during a laryngoscopy is longer and inserted through the mouth. This allows the larynx to be seen in greater detail.
A laryngoscopy can be very uncomfortable, so it's usually carried out under general anaesthetic (where you're asleep). You should be able to leave hospital as soon as you've recovered from the effects of anaesthetic, which is usually the same day or the day after.
During a nasendoscopy or laryngoscopy, your doctor may use small instruments to remove a sample of cells from your larynx so it can be examined for signs of cancer. This is known as a biopsy.
Alternatively, if you have a lump in your neck, a needle and syringe can be used to remove a tissue sample. This is known as fine needle aspiration.
If the results of the biopsy show you have cancer and there's a risk it may have spread, you'll probably be referred for further testing to assess how widespread the cancer is. The tests may include:
After these tests have been completed, your doctor should be able to tell you the extent of the cancer. This is known as the stage and grade of the cancer.
Healthcare professionals use a system called the TNM system to stage laryngeal cancer. T describes the size of the tumour, N describes whether cancer has spread to the lymph nodes and M gives an indication of whether the cancer has spread to other parts of the body.
There are also three different grades (1-3) used to describe laryngeal cancer. Lower-grade cancers, such as grade 1, tend to grow more slowly and are less likely to spread. Higher-grade cancers, such as grade 3, grow quickly and are more likely to spread.
You can read more about the stages and grades of laryngeal cancer on the Cancer Research UK website.