Which histologic finding may indicate lymph node metastasis of papillary thyroid carcinoma (PTC)?

Updated: Jun 18, 2020
  • Author: Ponnandai S Somasundar, MD, MPH, FACS; Chief Editor: Neetu Radhakrishnan, MD  more...
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A study by Liu et al found that when hematoxylin and eosin staining demonstrates loss of cellular polarity/cohesiveness (LOP/C) in the invasive front of papillary thyroid carcinoma, this finding may indicate lymph node metastasis and aggressive clinical behavior of the cancer. LOP/C of 20% or greater correlated significantly with extrathyroid invasion, advanced tumor stage, and recurrence after surgery. [44]

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