villous papilloma(redirected from villous tumor)
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 papilloma with long, thin excrescences, present in the urinary bladder, breast, intestinal tract, or choroid plexus of the cerebral ventricles.
See also: papilloma