papilloma

(păp'ə-lō'mə)
n., pl., -mas, or -ma·ta (-mə-tə).
A small benign epithelial tumor, such as a wart, consisting of an overgrowth of cells on a core of smooth connective tissue.

papillomatous pap'il·lo'ma·tous adj.

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IN BRIEF: n. - A benign epithelial tumor forming a rounded mass.

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The common wart. A benign tumor derived from epithelium, which may arise from skin, conjunctiva, mucous membranes or glandular ducts. Varies from keratinized, to fibrovascular, squamous. Caused by a species-specific papillomavirus. See also papillomavirus.

Papilloma on a horse's muzzle. By permission from Knottenbelt DC, Pascoe RR, Diseases and Disorders of the Horse, Saunders, 2003

• cutaneous p. — the common form; distinguishable from papilloma of the esophageal groove and reticulum, bladder.
• fibrovascular p. — single or multiple, small, benign fibrovascular skin tumors, that occur occasionally on the extremities or ventral thorax of dogs. Called also skin tag, keratin tag, soft fibroma.
• plexus p. — a rare tumor of the choroid plexus, often causing an internal hydrocephalus.

(pap′ilō′mə)
n

1. a benign neoplasm of epithelium, often having a warty appearance. n 2. a benign, exophytic, pedunculated, cauliflower-like neoplasm of epithelium.

Oral papilloma. (Neville/Damm/Allen/Bouquot, 2002)

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