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What are Head and Neck
Cancer?
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Head and neck cancers include tumors in several areas:
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Lip and oral cavity
cancer. This includes the lips, tongue, the inside lining of the cheeks, the floor of
the mouth, the gums and the hard palate.
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Laryngeal cancer.
The larynx (voice box) is in the front of the neck in the region of the Adam's apple.
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Oropharyngeal
cancer. The oropharynx is the upper part of the throat that can be seen when you say
"ahh". It also includes the tonsils.
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Hypopharyngeal
cancer. The hypopharynx is the lower part of the throat (pharynx) where food goes just
before we swallow.
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Nasopharyngeal
cancer. The nasopharynx is behind the nose and above the oropharynx. It cannot be seen
directly, but is viewed with a mirror or scope.
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Salivary
glands. These glands produce saliva to moisten our mouth and help us chew and swallow
food.
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Paranasal sinuses
and nasal cavity cancer. Sinuses are found below and above the eyes and behind the
nose.
Metastatic
squamous cell cancer to cervical (neck) lymph nodes. If a cancer that is discovered in
lymph nodes in the upper part of the neck is squamous cell, it is usually a metastasis
from a head and neck cancer. Unless some other primary source can be found, this tumor is
generally treated as a head and neck cancer. It is important to know that this type of
metastatic cancer may be curable.
Almost half of all head and neck cancer cases are
located in the mouth and throat. About one third are in the larynx. These cancers and
their treatment can have serious results because they tend to involve the upper digestive
and upper respiratory tract, which can interfere with eating, breathing, and speaking.
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Detecting Head and Neck Cancers
Risk
Factors -
The use of tobacco and/or alcohol is
the most important contributing factor. Smokers, users of smokeless tobacco, and drinkers
who fail to stop after treatment for a primary head and neck cancer are at significantly
higher risk of developing another cancer.
Poor oral hygiene, poorly fitting
dentures or broken teeth cause chronic irritation of oral membranes.
Wood dust inhalation is related to
nasal cavity cancer.
Betel nut chewing is related to
cancer of the lining of the cheek.
Increased carcinoma of nasopharynx
among southern Chinese (environmental, not genetic).
Epstein-Barr virus (EBV) infection
is associated with nasopharyngeal cancer.
Chronic iron deficiency in women
is associated with tongue and postcricoid carcinoma.
Nickel exposure is associated with
paranasal sinus cancer.
Symptoms
A swelling or ulcer that doesn't
heal in the mouth or oral cavity.
Pain, swelling, or bloody
discharge in the nose or sinuses, nasal obstruction, double vision or chronic sinus
trouble that does not respond to antibiotics.
Painless swelling that results in
paralysis of one side of the face (salivary glands).
Oropharynx symptoms may be
difficulty or pain in swallowing and ear pain, or may not show any symptoms at all.
Hypopharynx symptoms may include
difficulty in swallowing, ear pain and enlarged lymph nodes in the neck, or may not show
any symptoms at all.
Nasopharynx symptoms may include
bloody nasal discharge or nasal obstruction, decreased hearing, double vision, pain,
hoarseness or enlarged lymph nodes in the neck.
Persistant hoarseness, difficulty
breathing, pain in the larynx.
Swollen lymph nodes in the neck
may be a symptom of metastatic squamous cell cancer.
Any of these symptoms may also be
due to other, less serious problems. Still, it is important to see a doctor is any of
these problems exist for more than two weeks. Do not wait for pain, because pain is not
always an early symptom.
Test for Cancer
Screening is not generally
practiced. However, there are three approaches to early detection.
Call your physician if you notice
symptoms of head and neck tumors.
Examination of your head and neck,
including the larynx, by your physician.
Call your dentist if you notice
lesions or white patches in your mouth.
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Treatment
The doctor is the
best person to answer questions about treatment. The choice of treatment options for each
patient will depend upon the location, size, stage of the disease (whether it has spread
to other places), and the patient's general state of health. The doctor develops a plan
for treatment that fits each patient's needs.
Questions to consider asking when
you talk to the doctor:
What are the treatment choices?
Is a clinical trial the right
choice?
What are the risks and benefits
for each type of treatment?
If there is pain, what can be done
to relieve it?
How will the treatment affect
everyday activities? For how long?
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General
Questions
Head
and Neck cancers account for 5 to 10 % of all malignancies. The are more common in men and
much more common in people over 50. They have a fairly good cure rate if found early,
evaluated adequately, and treated with the best available therapy. Three main treatment
methods are used - surgery, radiotherapy and chemotherapy.
Head neck is a broad category of
cancers that include tumors in several areas.
Lip and Oral cavity - Includes the
lips, tongue, the inside lining of the cheeks (buccal mucosa), the floor of the mouth, the
gums (gingiva) and the hard palate
Paranasal sinuses and nasal cavity
- Sinus areas found above and below eyes and behind the nose
Salivary glands - Produce saliva
to moisten our mouth and help us chew and swallow food
Oropharynx - The upper part of the
throat that can be seen when you say "ahhh". It includes the tonsils
Nasopharynx - Behind the nose and
above the oropharynx It cannot be seen directly, but is viewed with a mirror or scope.
Hypopharynx - The lower part of
the throat (pharynx) where food goes just before we swallow it
Larynx - Larynx (voice box) is in
the front of the neck in the area of the Adam's apple
Metastatic squamous cell cancer to
cervical (neck) lymph nodes - If the cancer is discovered in the lymph nodes in the upper
part of the neck is squamous cell (or epidermoid), it is usually a metastasis (spread)
from a head and neck cancer. If no other primary source can be found such as lung cancer,
this cancer is treated as a head and neck cancer. It is important to note that this type
of cancer my be curable
1. What are the possible causes or
risk factors for head and neck cancers?
ANSWER: Tobacco and/or alcohol is
the most important contributing factor. Smokers and drinkers who fail to stop after
treatment for a primary head and neck cancer are at a higher risk of developing another
cancer.
Poor oral hygiene, poorly fitting
dentures or broken teeth cause chronic irritation or oral membranes
Wood dust inhalation is related to
nasal cavity cancer
Betel nut chewing (India) is
related to cancer of the lining of the cheek
Increased cancer of nasopharynx
among southern Chinese (environmental, not genetic)
Epstein-Barr virus (EBV) infection
is associated with nasopharyngeal cancer
Chronic iron deficiency in women
is associated with tongue and area just below the Adam's apple cancer
Nickel exposure is associated with
paranasal sinus cancer
2. What are the signs and symptoms
of head and neck cancers?
ANSWER: Specific symptoms depend on
the location of the cancer. Tumors can appear as ulcerations of the mucous membranes with
hard, rolled edges, or less commonly as protruding growths.
Swelling ulcer that does not heal
(mouth & oral cavity)
Pain, swelling, bloody nasal
discharge, nasal obstruction, double vision or chronic sinus trouble that does not respond
to antibiotics
Painless swelling and later
paralysis of one side of the face (salivary glands)
Difficulty or pain on swallowing
and ear pain. (oropharynx-may also have no symptoms)
Difficulty swallowing, ear pain,
and enlarged lymph nodes in the neck (hypopharynx-may have no symptoms)
Bloody nasal discharge or nasal
obstruction, decreased hearing, nerve signs (double vision, pain, hoarseness) or enlarged
lymph nodes in the neck (nasopharynx)
Persistent hoarseness, difficulty
breathing, pain (larynx)
Swollen, painless lymph nodes in
the neck (metastatic squamous cell cancer)
3. How are head and neck cancers
diagnosed?
ANSWER: Head and neck cancers are
diagnosed by specific tests depending upon the location of the cancer.
Physical examination
Inspection of oral and nasal
cavities using mirrors and lights
Examination of suspicious lesions
& back of tongue
Blood Tests
Epstein -Barr (EB) virus antibody
measurements may be helpful in diagnosing hidden nasopharyngeal cancer with metastasis
(spread) into t he cervical lymph nodes
Imaging
X-rays of the sinuses and skull
CT and MRI, barium esophogram,
laryngogram and chest X ray
Biopsy
Biopsy of suspicious lesions
In the case of metastatic disease,
biopsy of normal tissue may be necessary to determine site of origin
4. Why does my doctor need to know
the stage of my disease and what does it mean?
ANSWER: Your doctor needs to know
the stage (extent) of your disease to determine the best treatment for you. Staging is an
evaluation of disease.
Accuracy of staging is critical, a
slight difference in the location and size of the lesion can have a significant effect on
the therapy chosen, the extent of the surgery and the prognosis (a prediction of the
course of the disease). |
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