Figure 1. H&E, 5x. | Figure 2. H&E, 10x. |
Figure 3. H&E, 10x. | Figure 4. H&E, 20x. |
Figure 5. Diffuse CK19 positivity in the tumor cells, 10x. | Figure 6. CK19 positivity, 20x. |
Figure 7. CD56 was negative in the tumor cells; note the CD56 expression in adjacent normal thyroid epithelium, 10x. |