malignant pleomorphic adenoma
- 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.
2011.
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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
pleomorphic adenoma — a benign, slow growing tumor of the salivary gland, occurring as a small, painless, firm nodule, usually of the parotid gland, but also found in any major or accessory salivary gland anywhere in the oral cavity. It is most often seen in women in… … Medical dictionary
malignant mixed tumor — a type of malignant pleomorphic adenoma usually occurring in the salivary glands of older adults in one of two forms: in the first both epithelial and mesenchymal components are malignant and may metastasize (carcinosarcoma) and in the second a… … Medical dictionary
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