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15 Cards in this Set
- Front
- Back
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T1
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2 cm or less in greatest dimension with fewer than 2 high risk features
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T2
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>2 cm; or tumor any size with 2 or more high risk features
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T3
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invasion of maxilla, orbit, or temporal bone
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T4
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invasion of skeleton or perineural invasion of skull base
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High risk features
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depth/invasion: > 2 mm thickness, Clark level >= IV, perineural invasion
location: primary site ear, primary site hair-bearing lip differentiation: poorly differentiated or undifferentiated |
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N1
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Single ipsilateral lymph node, <= 3cm in greatest dimension
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N2a
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Single ipsilateral lymph node, 3-6 cm in greatest dimension
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N2b
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Multiple ipsilateral lymph nodes, <= 6cm in greatest dimension
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N2c
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Bilateral or contralateral lymph nodes, <= 6cm in greatest dimension
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N3
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Lymph node(s) >6 cm in greatest dimension
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I
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T1 N0
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II
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T2 N0
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III
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T3 N0, T1-3 N1
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IV
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N2-N3, or T4, or M1
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Changes from 6th Edition
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T-stage incorporates high risk features (e.g. grade, site) for T1 vs T2
No longer size cutoff of 5 cm T3 and T4 reclassified N-stage now N1/N2abc/N3 (same as H&N cancer) Change in Stage Grouping |
