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Percentage of nodal metastases as a function of location and tumor size[1]

Percentage of nodal metastases as a function of location and tumor size[1]
  T1 T2 T3 T4
Pyriform sinus 38 to 91 67 to 83 69 to 80 60 to 98
Pharyngeal wall 33 to 70 31 to 79 47 to 85 70 to 82
Postcricoid space 6 17 38 50
Percent_nodal_metastases.htm
1. McGavran MH, Bauer WC, Spjut HJ, Ogura JH. Carcinoma of the Pyriform Sinus: the Results of Radical Surgery. Arch Otolaryngol 1963; 78:826.
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