Bethesda classification system for thyroid fine needle aspirates

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Bethesda classification system for thyroid fine needle aspirates comprises of six (6) categories in pathological reporting of thyroid FNA's with each category is linked to a malignancy risk. They are as

  • category I: non diagnostic
  • category II: benign
  • category III: atypia of undetermined significance
  • category IV: suspicious for follicular neoplasm
  • category V: suspicious for malignancy
  • category VI: malignant

See also