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Medical Term:

Arias-Stella phenomenon

Pronunciation: ahr'yahs stel'a

Definition: focal, unusual, decidual changes in endometrial epithelium, consisting of intraluminal budding, and nuclear enlargement and hyperchromatism with cytoplasmic swelling and vacuolation; may be associated with ectopic or uterine pregnancy.

Synonym(s): Arias-Stella effect, Arias-Stella reaction

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.