Central Mucoepidermoid Carcinoma Radiographically Mimicking an Odontogenic Lesion

Figure 2

Histological and immunohistochemical features. HE staining revealed a nonencapsulated neoplasm of glandular epithelial origin (A–D). The tumor was comprised with mucous, intermediate, and squamous cells, with cystic growth patterns in some areas (asterisks) (E, F). A large amount of mucus was seen throughout the neoplasm. Mucous cells were positive for PAS with diastase digestion (G). Neoplastic cells were positive for cytokeratin (CK) 7 (H) and CK14 (J) and negative for CK13 (I). Objetives: (A) 1x, (B) 2x, (C) 4x, (E, H) 10x, (F, G) 20x, and (I, J) 40x.