1. Pearls and Pitfalls of Diagnosing Thyroid Malignancies
By Christa R. Lyons

2. Presentation Outline
Characteristics
Cancer
Controversy
Conclusion

4. Common Interpretive Pitfalls
Cystic or Calcified Nodal Metastases
Mistaking diffusely infiltrative thyroid carcinomas
Failing to recognize microcalcifications

5. Pathological Types of Thyroid Malignancy
Thyroid Nodule
Images courtesy of Dr. Ravi Kadasne, UAE.

6. Pathological Types of Thyroid Malignancy

7. Calcifications

8. Calcifications

9. Margins, Contour, & Shape
Halo or Hypoechoic Rim

11. Margins, Contour, & Shape
Halo or Hypoechoic Rim
Width and Length
Vascularity

13. Margins, Contour, & Shape
Halo or Hypoechoic Rim
Width and Length
Vascularity
Size of Nodule
Number of Nodules

14. New Research on Microcalcifications - Three catagories
Solitary calcifications without shadowing in middle and >2mm
Eggshell calcifications - curvilinear hyperechoic structure
All other coarse but not otherwise specified (NOS)