Tubulovillous adenoma of the colon and rectum

What is a tubulovillous adenoma? A tubulovillous adenoma (TVA) is a noncancerous type of polyp that can develop anywhere in the colon and rectum. It develops from the cells that cover the inside surface of these tissues. If left untreated, all tubulovillous adenomas are associated with an increased risk of developing a type of colon …
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