Definition: 'Arias-Stella Phenomenon'
Arias-Stella phenomenonType: Term
Pronunciation: ahr′yahs stel′ă
1. 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.
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