| cylindroma | <tumour> A histologic type of epithelial neoplasm, frequently malignant, characterised by islands of neoplastic cells embedded in a hyalinised stroma which may represent a thickened basement membrane; may form from ducts of glands, especially in salivary glands, skin, and bronchi; in the salivary glands, also termed adenoid cystic carcinoma. Synonym: cylindroadenoma. Origin: G. Kylindros, cylinder, -oma, tumour (05 Mar 2000) |
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| cylindromatous carcinoma | <tumour> A histologic type of carcinoma characterised by large epithelial masses containing round, glandlike spaces or cysts which frequently contain mucus or collagen and are bordered by a few or many layers of epithelial cells without intervening stroma, forming a cribriform pattern like a slice of Swiss cheese; perineural invasion and haematogenous metastasis are common; occurs most commonly in salivary glands. Synonym: cylindromatous carcinoma. (05 Mar 2000) |
| cylindroma |
1. a usually benign tumor of either apocrine or eccrine origin generally arising in early life as single or multiple nodules located on the scalp and less often on the face and extremities, and consisting of cylindrical epithelial masses containing small basophilic and larger pale-staining cells surrounded by pink hyaline sheaths. Multiple lesions, which affect females more often and may completely cover the scalp (hence the descriptive term turban tumor), are usually dominantly inherited, and may also be associated with multiple trichoepitheliomas. 2. adenoid cystic carcinoma.
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| cylindromatous |
pertaining to or of the nature of cylindroma.
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