Update on Anaplastic Thyroid Carcinoma: Morphological, Molecular, and Genetic Features of the Most Aggressive Thyroid Cancer

Figure 6

A significant rate of ATC is associated with WDTC. In this case, residual foci of papillary carcinoma are seen in the lower right corner but the main bulk of the tumor is composed of strands of squamoid atypical cells and spindle neoplastic elements.