chapter 29 larynx region Flashcards
The larynx is divided into three sections:
glottis, supraglottis, and subglottis
The most common site for laryngeal cancer
glottis
Larynx cancer affects women more often than men
False
What is the main etiology for laryngeal cancers?
Smoking black tobacco
Other risk factors for laryngeal cancers
alcohol, extensive use of the voice (for work), GERD, or HPV infection
What are the superior and inferior vertebral borders of the larynx?
c3-c6
What are the classic symptoms of laryngheal cancer
Persistent sore throat and hoarseness
Surgery is the standard of care for carcinomas of the larynx, oral cavity, oropharynx, hypopharynx, and nasopharynx
False
What is the most affected group?
males between 50-60 yrs old
Cervical lymph node involvement is seen in glottic lesions but not in supraglottic lesions
False
Radiation therapy alone or concurrent with chemotherapy is the preferred treatment for poorly differentiated carcinoma
True
Define typical radiation field borders
Sup: upper thyroid notch
Inf: cricoid cartilage (lower border of C6)
Ant: 1-cm to 1.5-cm flas or shine over the skin surface at the level of the vocal cords
Post: Just anterior to the vertebral body, including the anterior portion of the posterior pharyngeal wall.
Lymphatic drainage of the subglotties goes into…
The peritracheal and low cervical nodes
The Supraglottis has extremely rare nodal involvement
False
Which area of the larynx drains into the peritracheal, cervical submental, and submxillary nodes
Supraglottis
