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Pronunciation: ahr′yahs stel′ă
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
Examples: glitazone, GI cocktail, etc.
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