hyperplasia

Pronunciation: (HY-per-PLAY-zhuh)

An increase in the number of cells in an organ or tissue. These cells appear normal under a microscope. They are not cancer, but may become cancer.

Source: NCI Dictionary of Cancer Terms

Normal cells may become cancer cells. Before cancer cells form in tissues of the body, the cells go through abnormal changes called hyperplasia and dysplasia. In hyperplasia, there is an increase in the number of cells in an organ or tissue that appear normal under a microscope. In dysplasia, the cells look abnormal under a microscope but are not cancer. Hyperplasia and dysplasia may or may not become cancer.Las células normales se pueden convertir en cancerosas. Antes de que se formen las células cancerosas en los tejidos del cuerpo, estas pasan por cambios anormales que se llaman hiperplasia y displasia. En la hiperplasia, hay un aumento del número de células en un órgano o un tejido, que parecen normales al microscopio. En la displasia, las células tienen aspecto anormal al microscopio, pero no son cancerosas. Es posible que la hiperplasia y la displasia se conviertan o no en cáncer. Date last modified: 2014-11-26