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Table 2 Lymph node metastasis type in 1773 PTC patients

From: PTC located in the upper pole is more prone to lateral lymph node metastasis and skip metastasis

  Upper pole group Non-upper pole group P value
CL 160 (25.64%) 277 (24.11%) <0.001
C + L 129 (20.67%) 384 (33.42%)  
CL+ 97 (15.54%) 42 (3.66%)  
C + L+ 238 (38.14%) 446 (38.82%)  
  1. CL− central lymph node negative with lateral lymph node negative, C + L− central lymph node positive with lateral lymph node negative, CL+ central lymph node negative with lateral lymph node positive, C + L+ central lymph node positive with lateral lymph node positive