W/L Ch 31 H&N Quiz Flashcards
After what dose of radiation does xerostomia typically first occur?
a. 1000 to 2000 cGy
b. 2000 to 3000 cGy
c. 3000 to 4000 cGy
d. 4000 to 5000 cGy
a. 1000 to 2000 cGy
Xerostomia occurs after 1000 to 2000 cGy and may be permanent after 4000 cGy.
After what dose of radiation may xerostomia become permanent?
a. 1000 to 2000 cGy
b. 2000 to 3000 cGy
c. 3000 to 4000 cGy
d. 4000 to 5000 cGy
d. 4000 to 5000 cGy
In which salivary gland do most salivary cancers occur?
a. Parotid
b. Submandibular
c. Sublingual
d. Minor
a. Parotid
Radiation therapy of which of the following cancers does not include regional lymph nodes?
a. Early staged parotid
b. Early staged larynx
c. Early staged nasopharynx
d. All of the above include regional lymph nodes
b. Early staged larynx
What structure of the neck is also known as the glottis?
a. True vocal cords
b. False vocal cord
c. Vestibular folds
d. Nasal turbinates
a. True vocal cords
What is the name of the leaf-shaped cartilage that protects the larynx?
a. Glottis
b. Epiglottis
c. Pharynx
d. Larynx
b. Epiglottis
What is commonly referred to as the voice box?
a. Vestibular folds
b. Epiglottis
c. Pharynx
d. Larynx
d. Larynx
What defines the posterior radiation field border for the treatment of a low-staged larynx cancer?
a. Posterior aspect of the hyoid
b. Anterior aspect of the vertebral body
c. Midvertebral body
d. Posterior aspect of the vertebral body
b. Anterior aspect of the vertebral body
What defines the superior radiation field border for the treatment of a low-staged larynx cancer?
a. Superior aspect of the hyoid
b. Cricoid cartilage
c. Inferior aspect of the mandible
d. Roof of the mouth
a. Superior aspect of the hyoid
What defines the inferior radiation field border for the treatment of a low=staged larynx cancer?
a. Superior aspect of the hyoid
b. Cricoid cartilage
c. Clavicles
d. C7-T1 intervertebral space
b. Cricoid cartilage
What is the most common histologic type of head and neck cancer?
a. Adenocarcinoma
b. Transitional cell carcinoma
c. Squamous cell carcinoma
d. Renal cell carcinoma
c. Squamous cell carcinoma
What is the most common form of larynx cancer?
a. Adenocarcinoma
b. Basal cell
c. Squamous cell
d. Transitional cell
c. Squamous cell
What condition frequently develops in users of smokeless tobacco?
a. Erythroplakia
b. Leukoplakia
c. Thrush
d. Dysplasia
b. Leukoplakia
What is the most common presenting symptom of larynx cancer?
a. Sore throat
b. Persistent cough
c. Hoarseness
d. Difficulty breathing
c. Hoarseness
What T stage is a glottic tumor that involves both vocal cords but does NOT impair mobility?
a. T1a
b. T1b
c. T1c
d. T2
b. T1b