Clinicopathological Analysis of Bronchiolar Adenoma Lined Purely by Mucinous Luminal Cells

Figure 3

Immunohistochemistry. Both mucinous luminal cells and basal cells were positive for TTF1 (a) (200x). Basal cells were positive for p40 (b) (200x). Focal mucinous luminal cells were positive for NapsinA (c) (200x). Mucinous luminal cells were positive for EGFR (d) (200x).