Arias-Stella reaction
Jump to navigation
Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
The Arias-Stella reaction is a benign change.
General
- Benign atypical endometrial changes associated with chorionic tissue.[1]
- May be seen in a normal pregnancy, hydatidiform moles, others.
- Historically it was diagnosed as endometrial cancer.
- Usually in premenopausal women - pregnant or recently pregnant; however, it may be seen postmenopausal women.[2]
Note:
- To the novice... the nuclei look really scary, i.e. they look like cancer.
Microscopic
Features:[1]
- Epithelial component of endometrium with large nuclei - key feature.
- +/-Nuclear hyperchromasia, i.e. dark nuclei.
- +/-Irregular nuclear membrane.
- +/-Nuclear clearing.[3]
- +/-Nuclear pseudoinclusions.
- NC ratio is preserved.[3]
- Usually a focal change.
- +/-Mitoses - uncommon.
Notes:
- No decidual reaction in the stroma.
DDx:
- Choriocarcinoma.
- Herpetic endometritis.
- Clear cell endometrial carcinoma.
- Serous endometrial carcinoma.[4]
Images:
Subtypes
There are five subtypes:[1]
- Minimal atypia.
- Usually early gestation.
- Early secretory pattern.
- Mimics secretory endometrium: cytoplasmic vacuoles, central nucleus, palisading architecture.
- Secretory or hypersecretory pattern.
- Regenerative, proliferative or nonsecretory pattern.
- Monstrous cell pattern.
See also
References
- ↑ 1.0 1.1 1.2 Arias-Stella, J. (Jan 2002). "The Arias-Stella reaction: facts and fancies four decades after.". Adv Anat Pathol 9 (1): 12-23. PMID 11756756.
- ↑ Offman, SL.; Longacre, TA. (Sep 2012). "Clear cell carcinoma of the female genital tract (not everything is as clear as it seems).". Adv Anat Pathol 19 (5): 296-312. doi:10.1097/PAP.0b013e31826663b1. PMID 22885379.
- ↑ 3.0 3.1 Tadrous, Paul.J. Diagnostic Criteria Handbook in Histopathology: A Surgical Pathology Vade Mecum (1st ed.). Wiley. pp. 236-7. ISBN 978-0470519035.
. Cite error: Invalid
<ref>
tag; name "Ref_DCHH236-7" defined multiple times with different content - ↑ Félix, A.; Nogales, FF.; Arias-Stella, J. (Mar 2010). "Polypoid endometriosis of the uterine cervix with Arias-Stella reaction in a patient taking phytoestrogens.". Int J Gynecol Pathol 29 (2): 185-8. doi:10.1097/PGP.0b013e3181b7015e. PMID 20173505.