Atypical hyperplasia

Atypical hyperplasia is a benign (noncancerous) cellular hyperplasia in which cells show some atypia. In this condition, cells look abnormal under a microscope and are increased in number.

By organs

Breast

Atypical hyperplasia is a high-risk premalignant lesion of the breast. It is believed that atypical ductal hyperplasia (ADH) is a direct precursor for low-grade mammary ductal carcinoma, whereas atypical lobular hyperplasia (ALH) serves as a risk indicator.

External links

Atypical hyperplasia entry in the public domain NCI Dictionary of Cancer Terms

This article incorporates public domain material from the U.S. National Cancer Institute document "Dictionary of Cancer Terms".

This article is issued from Wikipedia - version of the 2/8/2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.