Chapter 26 Flashcards
Head and neck cancer
Cite the origin of most head and neck cancers.
Most head and neck cancers arise from squamous cells that line the mucosal surfaces of the head and neck
Review the risk factors for developing head and neck cancer. (11)
*Tobacco
*alcohol
*>50 yo
*male
*HPV
sun exposure
*asbestos
*industrial carcinogens
*Marijuana use
*radiation therapy
*poor oral hygiene
Describe common manifestations of head and neck cancer and how they may vary due to specific location (8)
*lump in the throat
*sore throat
*white or red patches in mouth
*change in voice quality
*ear pain
*ear ringing
*neck swelling
*trouble swallowing, chewing, moving tongue or jaw, breathing
List the late signs of heads and neck cancer. (5)
Unintentional weight loss, difficulty with chewing, swallowing, moving tongue or jaw, or breathing, airway obstruction (partial or full).
Name 2 instruments used to examine upper airways.
Pharyngoscopy
Laryngoscopy (which involves using a laryngeal mirror)
Cite other diagnostic methods used to determine the extent of the disease. (3)
CT and MRI may be done to detect local and regional spread.
PET scan is used in diagnosis.
Cite which classification system of cancer is used for head and neck cancers.
TMN (Tumor, Mets, Nodes)
vocal cord stripping
Three
- Removal of outer layers of tissue on the vocal cords.
- used for a biopsy or to treat some stage 0 cancers confined to the vocal cords.
- Vocal cord stripping rarely affects speech.
cordectomy
one what and three pts on how it effects voice
- Removal of part or all of the vocal cords.
- may be changes in tone of voice.
- Removing part of the vocal cord may lead to a hoarse voice.
- If both vocal cords are removed, speech will no longer be possible.
partial/total laryngectomy
(What and how it effects voice; two pts)
- Removal of part or all of the larynx.
- A total laryngectomy will change airflow in and out of the lungs and normal voice production will not be possible.
radical neck dissection
two pts
- removal of all the tissue on the side of the neck from the mandible to the clavicle.
*includes muscle, nerves, salivary glands, and major blood vessels.
modified radical neck dissection
three
- most common type of neck dissection for cancer.
- All lymph nodes are removed.
- Less neck tissue is taken out in the radical dissection.
- May spare nerves in the neck and sometimes the blood vessels or muscles. (less intense, while still getting the job done)
selective neck dissection
three
- used if cancer has not spread far
- fewer lymph nodes are removed.
- The muscle, nerve and blood vessels in the neck may be saved.
Compare laryngectomy and tracheostomy.
*Trach: done to create an alternate pathway for breathing by creating a stoma in the trachea.
*Lary: removal of part of all the larynx, changing the airflow in and out of the lungs and normal voice production will not be possible (not reversible vs reversible?)
Cite one advantage of using radiation therapy for early head and neck cancers.
Offers good results with voice preservation