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12 Cards in this Set
- Front
- Back
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What is the delineation between the glottis and subglottis?
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line 1cm below the free edge of the vocal cords
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What are the boundaries of the pre-epiglottic space?
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1)hyoepiglottic ligament
2)thyrohyoid ligament 3)epiglottis and thyroepiglottic ligaments |
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What are the anatomic subsites of the supraglottis?
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1)suprahyoid epiglottis
2)infrahyoid epiglottis 3)aryepiglottic fold, laryngeal aspect 4)ventricular bands 5)arytenoids |
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From where to supraglottic carcinomas typically arise?
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central infrahyoid epiglottis
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What levels do supraglottic cancers spread to?
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BILATERAL levels II and III
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For supraglottic ca, what is the rate of occult mets?
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T1: 20%
T2: 40% T3: 60% T4: 80% |
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Glottic SCC has a predilection for which part of the vocal cord?
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anterior half of the true vocal cord
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What is the rate of occult mets for glottic CA?
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T1,T2: 8%
T3,T4: 20-40% |
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What is the insertion of the vocalis tendon into the thyroid cartilage called, and what is its significance?
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Broyle's ligament - permits tumor invasion of cartilage at this site
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What is the first order node from the glottis?
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Delphian node
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What percentage of laryngeal cancers arise in the glottis? the supraglottis? the subglottis?
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glottis:50-70%
supraglottis:30% subglottis:rare |
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For early laryngeal ca (T1/2), What is the expected cure rate?
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80-90% cure rate
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