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The Bethesda system for reporting thyroid cytopathology Mansour Mehzad, MD, FIAC

The Bethesda system for reporting thyroid cytopathology Mansour Mehzad, MD, FIAC. The Bethesda system for reporting thyroid cytopathology

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The Bethesda system for reporting thyroid cytopathology Mansour Mehzad, MD, FIAC

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  1. The Bethesda system for reporting thyroid cytopathology Mansour Mehzad, MD, FIAC

  2. The Bethesda system for reporting thyroid cytopathology I. Non-diagnostic or Unsatisfactory- Cyst fluid only ( macrophages only ) - Virtually acellular specimen - Other (obscuring blood, clotting artefact,etc)II. Benign- Consistent with a benign follicular nodule ( includes adenomatous nodule,colloid nodule) - Consistent with lymphocytic (Hashimoto’s) thyroiditis in the proper clinical context - Consistent with granulomatous (subacute) thyroiditis - Other

  3. III. Atypia ofundetermined significance or follicular lesion of undetermined significance IV. Follicular neoplasm or suspicious for a follicularneoplasm- Specify if Hurthle cell (oncocytic) typeV. Suspicious for malignancy- Suspicious for papillary carcinoma - Suspicious for medullary carcinoma - Suspicious for metastatic carcinoma - Suspicious for lymphoma - Other

  4. VI. Malignant- Papillary carcinoma - Poorly differentiated carcinoma - Medullary thyroid carcinoma - Undifferentiated (anaplastic) carcinoma - Squamous cell carcinoma - Carcinoma with mixed features (specify) - Metastatic carcinoma - Non-Hodgkin’s lymphoma - Other

  5. Macrophages only

  6. Adenomatous nodule

  7. Adenomatous nodule

  8. Colloid nodule

  9. Focal hurthle cell metaplasia in goiter

  10. Hashimoto’s thyroiditis

  11. Subacute thyroiditis

  12. Radioactive iodine effect

  13. Follicular neoplasm

  14. Follicular neoplasm,trabecular type

  15. Hurthle cell neoplasm

  16. Papillary carcinoma

  17. Papillary carcinoma

  18. Papillary carcinoma,follicular variant, Giemsa stain

  19. Papillary carcinoma,follicular variant , Pap.stain

  20. Poorly differentiated carcinoma

  21. Medullary carcinoma, Pap stain

  22. Medullary carcinoma, Giemsa stain

  23. Medullary carcinoma, immunoreactive for calcitonin

  24. Anaplastic carcinoma

  25. Squamous cell carcinoma

  26. Metastatic renal cell carcinoma

  27. MALT lymphoma

  28. References : 1. National Cancer Institute (NCI), Thyroid Fine needle aspiration state of the science, conference in 2007. 2. Edmond S. Cibas, Barbara S. Ducathman. CYTOLOGY, diagnostic principles and clinical correlates, saunders, 3rd edition,2009. 3. Marluce Bibbo, Acta Cytologica, volume 53, 489-490, 2009

  29. For more study on cytopathology of the thyroid gland refer to the CD in this subject prepared by the Society. The Members may call for a free copy from ISCC office in Isfahan.

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