| 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) |