NCIt synonyms : Pleomorphic Adenoma of Lacrimal Gland; Pleomorphic Adenoma of the Lacrimal Gland; Benign Mixed Tumor of the Lacrimal Gland; Lacrimal Gland Benign Mixed Tumor; Benign Mixed Tumor of Lacrimal Gland;
NCIt definition : A benign, usually encapsulated neoplasm of the lacrimal gland composed of epithelial
and mesenchymal cells. Pleomorphic adenomas are neoplasms that develop in the salivary
glands or heterotopic salivary gland tissues. It has been suggested that myoepithelial
cells play a major role in the histogenesis of these tumors. In the lacrimal gland,
pleomorphic adenomas presumably develop from metaplastic myoepithelial cells.;