villous adenoma several years can cancerate

Villous adenoma most often occurs in the digestive tract, is by the proliferation of epithelium to mucosal processes, the formation of villous and papillary changes. Papillary center can be seen fiber tissue and vascular composition of the central cord, its volume is generally larger, and the body is wider, pathology can be seen that the epithelium has different degrees of heteroplasia. Villous tumor fragile, easy to bleed, and grow more rapidly. The malignant rate of villous tumor in about 40%, so, found villous adenoma, should be timely surgical treatment. The time of canceration is uncertain, mainly according to the size of villous tumor volume, such as villous adenoma with a volume of more than three centimeters and more than four centimeters, the probability of canceration is higher.