Squamous Cell Carcinoma of the Thyroid as a Result of Anaplastic Transformation from BRAF-Positive Papillary Thyroid Cancer

Figure 2

(a) From left to right are the papillary tall cell variant portion of thyroid cancer staining positive for thyroglobulin, PAX8, and TTF-1 and negative for p63. (b) From left to right are squamous cell area of thyroid cancer staining negative for thyroglobulin, weakly positive for PAX8 and TTF-1, and strongly positive for p63.

(a)

(b)