Fig. 4From: Genetic and histopathological analysis of a case of primary intraosseous carcinoma, NOS with features of both ameloblastic carcinoma and squamous cell carcinomaHistopathological findings of case 2. a Infiltration of tumor nests composed of squamous epithelial cells with atypia (H&E staining, original magnification × 400). b Immunohistochemistry of the tumor using Ki-67 (original magnification × 400)Back to article page