Fig. 3
From: Bilateral collagenous fibroma of the hard palate: a case report and review of the literature
Histopathological features of the collagenous fibroma. A A connective tissue mass covered by keratinized stratified squamous epithelium (H&E* × 40). B Stellate and spindle- shaped cells in a heavily collagenized stroma with blood vessels (H&E × 100). C binucleated and trinucleated cells (green arrows) (H&E × 400). D Myxocollagenous stroma of the tumor (H&E × 400). H&E hematoxylin and eosin