Immunohistochemical expression of estrogen and progesterone receptors in endometrial polyps: A comparison between benign and malignant polyps in postmenopausal patients

dc.creatorAntunes, A
dc.creatorVassallo, J
dc.creatorPinheiro, A
dc.creatorLeao, R
dc.creatorNeto, AMP
dc.creatorCosta-Paiva, L
dc.date2014
dc.dateJUN
dc.date2014-07-30T18:05:55Z
dc.date2015-11-26T17:48:44Z
dc.date2014-07-30T18:05:55Z
dc.date2015-11-26T17:48:44Z
dc.date.accessioned2018-03-29T00:31:41Z
dc.date.available2018-03-29T00:31:41Z
dc.identifierOncology Letters. Spandidos Publ Ltd, v. 7, n. 6, n. 1944, n. 1950, 2014.
dc.identifier0950-9232
dc.identifier1792-1082
dc.identifierWOS:000336555200039
dc.identifier10.3892/ol.2014.2004
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/69956
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/69956
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1289189
dc.descriptionThe aim of the present study was to evaluate estrogen receptor (ER) and progesterone receptor (PR) expression in the glandular epithelium and stroma of benign and malignant endometrial polyps of postmenopausal patients. A total of 1,050 females underwent surgical hysteroscopy at the Professor Dr Jose Aristodemo Pinotti Women's Hospital, Center for Integral Attention to Women's Health of the State University of Campinas, between January 1998 and December 2008. Of the total number, 390 postmenopausal females with endometrial polyps were included in the study. Polypoid lesions were histologically classified as benign lesions (endometrial polyps and polyps with non-atypical simple hyperplasia or non-atypical complex hyperplasia) and premalignant and malignant lesions (polyps with atypical simple hyperplasia or atypical complex. hyperplasia and carcinomatous polyps). ER and PR expression was evaluated by immunohistochemistry according to cell staining, intensity of nuclear staining and final score. The final score for receptor expression was compared between the benign and premalignant/malignant polyps. The prevalence of malignancy in endometrial polyps was 7.1% and was associated with postmenopausal bleeding. Only the final score for ER expression in the stroma of endometrial polyps was higher in the benign group than in the premalignant/malignant group, and this difference was significant. However, no difference was identified in PR expression. In addition, the risk of malignancy in endometrial polyps was significantly higher when the expression of ER and PR was negative in the stromal component of the polyp (P<0.01). The malignancy of endometrial polyps was also associated with a low expression of stromal ER, however, PR expression did not show any association with the risk of malignancy.
dc.description7
dc.description6
dc.description1944
dc.description1950
dc.languageen
dc.publisherSpandidos Publ Ltd
dc.publisherAthens
dc.publisherGrécia
dc.relationOncology Letters
dc.relationOncol. Lett.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectendometrial polyp
dc.subjectpostmenopausal
dc.subjectestrogen receptor
dc.subjectprogesterone receptor
dc.subjectEndocrine Therapy
dc.subjectSteroid-receptors
dc.subjectCarcinoma
dc.subjectCancer
dc.subjectWomen
dc.subjectPremenopausal
dc.subjectPrevalence
dc.titleImmunohistochemical expression of estrogen and progesterone receptors in endometrial polyps: A comparison between benign and malignant polyps in postmenopausal patients
dc.typeArtículos de revistas


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