Fig. 1From: Integrated weighted gene coexpression network analysis identifies Frizzled 2 (FZD2) as a key gene in invasive malignant pleomorphic adenomaH&E and IHC staining in the myoepithelial subtype of IMPA. a H&E staining. Tumor cells were arranged in nodule patterns (red arrow) and separated by thick fibrous stroma. Necrosis (black arrow) was observed in the center of the tumor. IHC staining of CK7 (b), CK19 (c), S100 (d), SMA (e) and Calponin (f). The myoepithelial subtype of IMPA was positive for S100, SMA and Calponin, but was negative for CK7 and CK19. Scale bar  = 50 μmBack to article page