Fig. 2From: PTC located in the upper pole is more prone to lateral lymph node metastasis and skip metastasisdifferent type of the lymph node metastasis between the two group. C−L−, central lymph node negative with lateral lymph node negative; C + L−, central lymph node positive with lateral lymph node negative; C−L+, central lymph node negative with lateral lymph node positive; C + L+ central lymph node positive with lateral lymph node positiveBack to article page