Arias-Stella reaction
Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.
Arias-Stella reaction
[ah´ryahs stel´ah]nuclear and cellular hypertrophy of the endometrial epithelium associated with ectopic pregnancy.
A·ri·as-·Ste·lla phe·nom·e·non
(ahr'yahs stel'ă),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
Arias-Stella reaction
A dysmorphic change in the endometrial glands that closely simulates an adenocarcinoma. The ASR is hormonally induced and regarded as a typical endometrial reaction in ectopic pregnancy, which may be seen in trophoblastic disease; it is rare in normal intrauterine pregnancies.Arias-Stella,
Javier, Peruvian pathologist, 1924–.Arias-Stella effect - focal, unusual, decidual changes in endometrial epithelium that may be associated with ectopic or uterine pregnancy. Synonym(s): Arias-Stella phenomenon; Arias-Stella reaction
Arias-Stella phenomenon - Synonym(s): Arias-Stella effect
Arias-Stella reaction - Synonym(s): Arias-Stella effect