“…The IHC studies were performed to determine SP’s histogenesis, which is still unclear (4,10,18). The following antibodies were used in these studies : AE1/AE3, carcinoembryonic antigen (CEA), epithelial membrane antigen (EMA), cytokeratin (CK) 7, CK13, CK14, CK19, Ki-67, P40, P63, vimentin, smooth muscle actin (SMA), and SM-100 (3,4,10,11,18,19,31). A normal salivary gland presents CKs 14, 13, 7, 8, and 19 (all of them found in the SP immunoprofile) but does not stain for vimentin or smooth muscle actin (18).…”