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The Bethesda System for Reporting Thyroid Cytopathology

Wednesday 12 September 2012

Items

- NONDIAGNOSTIC or UNSATISFACTORY

  • Cyst fluid only
  • Virtually acellular specimen
  • Other (obscuring blood, clotting artifact, etc.)
    - BENIGN
  • Benign follicular nodule (includes adenomatoid nodule, colloid nodule, etc.)
  • Lymphocytic (Hashimoto) thyroiditis
  • Granulomatous (subacute) thyroiditis
  • Other

- ATYPIA OF UNDETERMINED SIGNIFICANCE or FOLLICULAR LESION OF UNDETERMINED SIGNIFICANCE

- FOLLICULAR NEOPLASM or SUSPICIOUS FOR A FOLLICULAR NEOPLASM

  • specify if Hürthle cell (oncocytic) type

- SUSPICIOUS FOR MALIGNANCY

  • Suspicious for papillary carcinoma
  • Suspicious for medullary carcinoma
  • Suspicious for metastatic carcinoma
  • Suspicious for lymphoma
  • Other

- MALIGNANT

  • Papillary thyroid carcinoma
  • Poorly differentiated carcinoma
  • Medullary thyroid carcinoma
  • Undifferentiated (anaplastic) carcinoma
  • Squamous cell carcinoma
  • Carcinoma with mixed features (specify)
  • Metastatic carcinoma
  • Non-Hodgkin lymphoma
  • Other

Links

- The Papanicolaou Society : http://www.papsociety.org/atlas.html
- AJCP