A large basal cell adenoma extending to the ipsilateral skull base and mastoid in the right parotid gland: A case report

Figure 3 Photomicrographs of the trabecular type of basal cell adenoma. A: A capsule and an eosinophilic basal membrane-like structure (hematoxylin-eosin staining, × 40); B: Small cuboidal to columnar epithelial cells arranged in strands with round hyperchromatic nuclei and relatively rounded central cells. The strands are surrounded by hyalinised connective tissue (hematoxylin-eosin staining, × 100).