Arias-Stella phenomenon

[ ärē-ä-stĕlə, äryä-stĕyä ]

n.

Focal, unusual, decidual changes in endometrial epithelium that consist of intraluminal budding, nuclear enlargement, and hyperchromatism with cytoplastic swelling and vacuolation.Arias-Stella reaction
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.