atypical hyperplasia
(ay-TIH-pih-kul HY-per-PLAY-zhuh)
A benign (not cancer) condition in which cells look abnormal under a microscope and are increased in number.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at opm.gov.