Arias-Stella reaction
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Arias-Stella reaction
Arias-Stella reaction, also Arias-Stella phenomenon, is a benign change in the endometrium associated with the presence of chorionic tissue.[1]
Cytologically, it looks like a malignancy and, historically, it was diagnosed as endometrial cancer.[1]
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Contents
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Significance
It is significant only because it can be misdiagnosed as a cancer. It may be seen in a completely normal pregnancy.
Diagnosis
It is characterized by nuclear enlargement and may also have any of the following: an irregular nuclear membrane, granular chromatin, centronuclear vacuolization, and pseudonuclear inclusions.[1]
Five subtypes are recognized:[1]
- Minimal atypia.
- Early secretory pattern.
- Secretory or hypersecretory pattern.
- Regenerative, proliferative or nonsecretory pattern.
- Monstrous cell pattern.
History
It was first described by Javier Arias Stella, a Peruvian pathologist in 1954.[2]
See also
References
- ^ a b c d Arias-Stella, J. (Jan 2002). "The Arias-Stella reaction: facts and fancies four decades after.". Adv Anat Pathol 9 (1): 12–23. PMID 11756756.
- ^ Arias-Stella, J. (Aug 1954). "Atypical endometrial changes associated with the presence of chorionic tissue.". Arch Pathol 58 (2): 112–28. PMID 13170908.
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