whether they were intracapsular tumors ( with or without identifiable pleomorphic adenoma ) , carcinomas ex pleomorphic adenoma , or a true malignant mixed tumor , all lesions had cell types and organizations either identical to those in pleomorphic adenoma or , as in less-differentiated examples , displayed features suggesting origin from luminal cells , myoepithelial cells , or both .
C0026277
pleomorphic adenoma
C0225356
myoepithelial cells