Poorly Differentiated Thyroid Carcinoma Arising in Struma Ovarii

Figure 2

A significant histological appearance of the ovarian tumor. ((a) and (b)) Tubular pattern composed of columnar cells with uniform nuclei. ((c) and (d)) Focal endometrioid-like pattern characterized by dilated gland-like structures with papillary-like infolding.

(a)

(b)

(c)

(d)