Myoepithelioma.
Myoepithelial cells are integral components of normal salivary glands. Their active or passive participation in the histogenesis of several salivary gland tumors is a debated issue. This debate notwithstanding, a rare form of salivary tumor composed entirely of myoepithelial cells exists and probably represents a monomorphic form of mixed tumor. This tumor, the myoepithelioma, occurs in most major and minor salivary tissues and is generally a biologically benign lesion.
D006801:Humans; D009208:Myoepithelioma / Q000473:pathology*; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D012469:Salivary Glands / Q000166:cytology / Q000473:pathology