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a papilloma composed of slender, fingerlike excrescences occurring in the bladder or large intestine, or from the choroid plexus of the cerebral ventricles; villous papilloma of the colon is usually sessile and frequently becomes malignant.
Synonym(s): villous tumor
a benign tumor with long, slender processes, usually occurring in the bladder, breast, or a cerebral ventricle.
A papilloma with long, thin excrescences, present in the urinary bladder, breast, intestinal tract, or choroid plexus of the cerebral ventricles.
See also: papilloma