Figure 3
From: The role of Thyroid Transcription Factor-1 and Tumor differentiation in Resected Lung Adenocarcinoma
The tumor differentiation grade was also associated with thyroid transcription factor-1 (TTF-1) expression. (A) Well-differentiated tumors exhibited stronger TTF-1 expression in immunohistochemical staining (400X). (B) Moderately differentiated tumors showed focally positive TTF-1 expression(400X). (C) poorly differentiated tumors showed negative TTF-1 expression (400X). (D) The χ2 test showed TTF-1 score was associated with tumor differentiation (p < 0.001).
