Fig. 2
From: Papillary thyroid microcarcinoma with lung metastases: a case report and review of the literature
A-E: Histopathological findings of the tumor in the middle lobe of the right lung. Atypical cells with intranuclear cytoplasmic inclusions have grown with papillary formations (A; HE, × 100). The tumor cells are positive for thyroglobulin (B; × 100), thyroid transcription factor-1 (C; × 100), and PAX8 (D; × 100) and negative for Napsin A (E; × 100). Scale bar: 100 μm. F: Histopathological findings of the thyroid. The tumor in the right lobe of the thyroid is diagnosed as papillary thyroid cancer, consistent with the lung tumor. Firm infiltration into the surrounding fat tissue can be observed (× 100). Scale bar: 100 μm