Pleomorphic adenoma — is a benign neoplastic tumor of the salivary glands. It is the most common type of salivary gland tumor and the most common tumor of the parotid gland. It derives its name from the architectural pleomorphism (variable appearance) seen by light… … Wikipedia
malignant pleomorphic adenoma — any of several malignant epithelial neoplasms arising in a pre existing pleomorphic adenoma, usually in the salivary glands of an older adult; it occurs in several types, usually divided into carcinoma ex pleomorphic a. and malignant mixed tumor … Medical dictionary
Adenoma pleomórfico — con epitelio mixto (izq) y componentes celulares mesenquimatosos (der). Éstos últimos exhiben apariencia mixofibroso y cierta diferenciación condromatosa … Wikipedia Español
Pleomorphic undifferentiated sarcoma — Classification and external resources Micrograph of a pleomorphic undifferentiated sarcoma. H E stain … Wikipedia
adenoma pleomórfico de la glándula lagrimal — Eng. Pleomorphic adenoma of the lacrimal gland Tumoración sólida y benigna más frecuente de la glándula lagrimal, de crecimiento lento … Diccionario de oftalmología
carcinoma ex pleomorphic adenoma — Carcinoma arising in a benign mixed tumor of a salivary gland, characterized by rapid enlargement and pain. * * * see under carcinoma … Medical dictionary
Adenoma — A benign tumor that arises in or resembles glandular tissue. If it becomes cancerous, it is called an adenocarcinoma. * * * A benign epithelial neoplasm in which the tumor cells form glands or glandlike structures; usually well circumscribed,… … Medical dictionary
Canalicular adenoma — is a type of benign salivary gland tumor that occurs most often in minor salivary glands. In addition to pleomorphic adenoma, the two are the most common tumors of the upper lip.CharacteristicIn 95% of cases, canalicular adenoma occurs on the… … Wikipedia
monomorphic adenoma — any of a group of benign salivary gland tumors that lack connective tissue changes and are each predominantly composed of a single cell type; included are basal cell adenomas, adenolymphomas, and oxyphilic adenomas. Cf. pleomorphic a … Medical dictionary
benign mixed tumor — pleomorphic adenoma … Medical dictionary
Pleomorphic adenoma. (A), Low-power view showing well-demarcated tumor with adjacent normal salivary gland parenchyma; (B), high-power view showing the mixture of epithelial and myoepithelial cells in a chondroid matrix material.
