Fig. 4
From: A rare case of poorly differentiated thyroid carcinoma probably arising from a nodular goiter
The poorly differentiated thyroid carcinoma showed trabecular, solid and microfollicular histological patterns without the nuclear features of a papillary thyroid carcinoma a, as well as high mitotic activity b. (a–b: hematoxylin and eosin, a: ×10, b: ×20)