adenoma

(redirected from monomorphic adenoma)
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Related to monomorphic adenoma: Pleomorphic adenoma, Canalicular adenoma

adenoma:

see neoplasmneoplasm
or tumor,
tissue composed of cells that grow in an abnormal way. Normal tissue is growth-limited, i.e., cell reproduction is equal to cell death. Feedback controls limit cell division after a certain number of cells have developed, allowing for tissue repair
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adenoma

[‚ad·ən′ō·mə]
(medicine)
A benign tumor of glandular origin and structure.
References in periodicals archive ?
As noted above, ACC shows little or no cytoplasm in most cases, (5) whereas cells of pleomorphic and monomorphic adenoma show cytoplasm that tends to be moderate to abundant with plasmacytoid morphology.
These 6 cancers included 2 mucoepidermoid carcinomas and 4 carcinomas of unspecified nature, while the 25 benign tumours consisted of 23 pleomorphic and 2 monomorphic adenomas.
Before its characterization as a separate diagnostic entity in 1983, PLGA was classified as a variant of pleomorphic adenoma, a variant of monomorphic adenoma, an adenoid cystic carcinoma, a malignant mixed tumor, and an adenocarcinoma not otherwise specified.
Benign disease (N = 119) Pleomorphic adenoma 83 42 Warthin's tumour 16 8 Monomorphic adenoma * 7 3 Lipoma 5 3 Benign lympho-epithelial lesions 4 2 Neurofibroma 2 1 Lymphangioma 2 1 Malignant disease (N= 53) Metastatic cutaneous SCC 12 6 Muco-epidermoid carcinoma 9 5 Cutaneous melanoma 8 4 Acinic cell carcinoma 8 4 Lymphoma 3 2 Adenoid cystic carcinoma 3 2 Primary SCC 2 1 Undifferentiated carcinoma 2 1 Metastatic oral cavity SCC 2 1 Metastatic maxillary sinus SCC 1 0.
We describe the case of a patient with a parotid mass that was found to consist of both a facial nerve schwannoma and a monomorphic adenoma.