Fig. 2
Histopathological and immunohistochemical features of adenomatoid odontogenic tumor. Microscopic features of adenomatoid odontogenic tumor showing a well-defined capsule of varying thickness and multinodular proliferation of cuboidal or columnar cells with some scattered duct-like structures (a–c). Calcifying epithelial odontogenic tumor-like areas were observed in some cases (d). Immunohistochemical reactions showing pERK1/2 expression in nodules (e) and rosettes (f). Epithelial cells in the calcifying epithelial odontogenic tumor-like areas (g) and in the lining of dentigerous cyst-like areas were also positive (h)
