Fig. 4
From: Salivary gland adenoid cystic carcinoma presenting as a large metastatic hepatic mass: a case report
Microscopic appearance of the salivary gland showing tubular and cribriform structures in a mucinous background (hematoxylin‒eosin, 20×). Immunoperoxidase staining showing a dual-cell population with the majority of cells positive for cytokeratin 7 and a lesser population of cells positive for S100 and tumor protein 63