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You searched for:"Maria Antonieta Longo Galvão"
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Revista Brasileira de Ginecologia e Obstetrícia. 2016;38(2):82-87
The aim of this study was to determine the expression of the immunohistochemical markers p16 and Ki-67 in cervical intraepithelial neoplasms and their influence on the level of agreement among different observers and for the same observer.
The study included 184 patients with cervical intraepithelial neoplasms previously confirmed through biopsies performed between 2005 and 2006. Three pathologists reviewed the biopsies by using hematoxylin-eosin staining to reach a consensus on the diagnosis. Subsequently, an immunohistochemical study analyzed the expression of p16 and Ki-67 in such cases.
The comparison among the reviewing pathologists revealed only moderate agreement (kappa = 0.44). The agreement improved when the differentiation of highgrade lesions (cervical intraepithelial neoplasm - CIN - 3) was analyzed (kappa = 0.59). p16 staining exhibited a high negative predictive value and sensitivity; however, the specificity was low. Overall, both qualitative and quantitative analyses of p16 and a quantitative analysis Ki-67 exhibited low accuracy. The agreement among diagnoses before immunohistochemistry was 0.47. The use of immunohistochemistry increased the agreement to 0.68.
Our study showed that the agreement among observers using traditional diagnostic criteria of cervical intraepithelial lesions can improve with the use of immunohistochemistry.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2016;38(2):82-87
The aim of this study was to determine the expression of the immunohistochemical markers p16 and Ki-67 in cervical intraepithelial neoplasms and their influence on the level of agreement among different observers and for the same observer.
The study included 184 patients with cervical intraepithelial neoplasms previously confirmed through biopsies performed between 2005 and 2006. Three pathologists reviewed the biopsies by using hematoxylin-eosin staining to reach a consensus on the diagnosis. Subsequently, an immunohistochemical study analyzed the expression of p16 and Ki-67 in such cases.
The comparison among the reviewing pathologists revealed only moderate agreement (kappa = 0.44). The agreement improved when the differentiation of highgrade lesions (cervical intraepithelial neoplasm - CIN - 3) was analyzed (kappa = 0.59). p16 staining exhibited a high negative predictive value and sensitivity; however, the specificity was low. Overall, both qualitative and quantitative analyses of p16 and a quantitative analysis Ki-67 exhibited low accuracy. The agreement among diagnoses before immunohistochemistry was 0.47. The use of immunohistochemistry increased the agreement to 0.68.
Our study showed that the agreement among observers using traditional diagnostic criteria of cervical intraepithelial lesions can improve with the use of immunohistochemistry.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2015;37(2):87-93
DOI 10.1590/SO100-720320140004650
To assess the relationship between the histological classification and the quality of life of patients operated for endometriosis. METHODS: A cross-sectional observational study, with assessment of 32 biopsies of the intestine, peritoneum and uterosacral ligament from 40 women with deep endometriosis. The quality of life (QOL) was determined by applying the SF-36 questionnaire pre-operatively and at 6 and 12 months postoperatively. Biopsies were histologically classified into pure stromal (EP), glandular differentiated (GD), glandular undifferentiated (GI) and mixed (GM), remaining in the sample only GI and GM, which are related to eight domains of the SF-36.
According to the histologic type, the following distribution was observed: peritoneum 63% GI and 35% GM; intestine 19% GI and 24% GM; uterosacral ligament with 41% GI and 35% GM. Regarding the QOL and the histological classification, in the intestine only GM was associated with improvement of social and emotional aspects from 0 to 6 months; the domains general health status (p=0.01) and social aspect (p=0.04) were significantly related to improvement of the QOL from 0 to 6 months, and the general health status tended to improve from 0 to 12 months. Regarding pain (p=0.06) and the emotional aspect (p=0.05), the QOL tended to improve from 0 to 6 months and the vital capacity (p=0.1) improved from 0 to 6 months and from 0 to 12 months. Regarding the emotional aspect, evolution of the two histological types was not favorable for improvement in MG from 0 to 6 months. No significant relationships between histologic type and QOL were evident in the uterosacral ligament samples.
Improvement in the QOL of women undergoing laparoscopic surgery for deep endometriosis is associated with the histologic grade. The peritoneal biopsy of GI revealed improved QOL after surgery.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2015;37(2):87-93
DOI 10.1590/SO100-720320140004650
To assess the relationship between the histological classification and the quality of life of patients operated for endometriosis. METHODS: A cross-sectional observational study, with assessment of 32 biopsies of the intestine, peritoneum and uterosacral ligament from 40 women with deep endometriosis. The quality of life (QOL) was determined by applying the SF-36 questionnaire pre-operatively and at 6 and 12 months postoperatively. Biopsies were histologically classified into pure stromal (EP), glandular differentiated (GD), glandular undifferentiated (GI) and mixed (GM), remaining in the sample only GI and GM, which are related to eight domains of the SF-36.
According to the histologic type, the following distribution was observed: peritoneum 63% GI and 35% GM; intestine 19% GI and 24% GM; uterosacral ligament with 41% GI and 35% GM. Regarding the QOL and the histological classification, in the intestine only GM was associated with improvement of social and emotional aspects from 0 to 6 months; the domains general health status (p=0.01) and social aspect (p=0.04) were significantly related to improvement of the QOL from 0 to 6 months, and the general health status tended to improve from 0 to 12 months. Regarding pain (p=0.06) and the emotional aspect (p=0.05), the QOL tended to improve from 0 to 6 months and the vital capacity (p=0.1) improved from 0 to 6 months and from 0 to 12 months. Regarding the emotional aspect, evolution of the two histological types was not favorable for improvement in MG from 0 to 6 months. No significant relationships between histologic type and QOL were evident in the uterosacral ligament samples.
Improvement in the QOL of women undergoing laparoscopic surgery for deep endometriosis is associated with the histologic grade. The peritoneal biopsy of GI revealed improved QOL after surgery.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(5):249-253
DOI 10.1590/S0100-72032009000500008
PURPOSE: to compare the expression of tumor necrosis factor-alpha (TNF-α) in ovular membranes with premature rupture (MPR) and with opportune rupture; to verify the association between the expression of the TNF-α in ovular membranes and the degree of chorioamnionitis, correlating the expression of the TNF-α and the membranes' time of rupture. METHODS: ovular membranes from 31 parturients with MPR, with gestational ages over 34 weeks, and from parturients with opportune membranes' rupture, with gestational ages equal or over 37 weeks. Chorioamnionitis detection has been done by histopathological analysis. The evaluation of the TNF-α expression has been done by immune-histochemical technique, using the labile streptavidin-biotin-peroxidase (LSAB) method. RESULTS: the average rupture time was 16.6 hours. The ratio of the TNF-α expression in the Control and Study Groups did not show a significant difference (χ2=6.6; p=0.08). In the Study Group, there was no correlation between the degree of chorioamnionitis and the intensity of TNF-α expression (Spearman's coefficient (Rs)=0.4; p=0.02). CONCLUSIONS: there was no significant difference between the TNF-α expression in ovular membranes with premature or opportune rupture; in the Study Group, there was significant association between TNF-α expression and the degree of chorioamnionitis, and there was no association between rupture time and the intensity of TNF-α expression.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(5):249-253
DOI 10.1590/S0100-72032009000500008
PURPOSE: to compare the expression of tumor necrosis factor-alpha (TNF-α) in ovular membranes with premature rupture (MPR) and with opportune rupture; to verify the association between the expression of the TNF-α in ovular membranes and the degree of chorioamnionitis, correlating the expression of the TNF-α and the membranes' time of rupture. METHODS: ovular membranes from 31 parturients with MPR, with gestational ages over 34 weeks, and from parturients with opportune membranes' rupture, with gestational ages equal or over 37 weeks. Chorioamnionitis detection has been done by histopathological analysis. The evaluation of the TNF-α expression has been done by immune-histochemical technique, using the labile streptavidin-biotin-peroxidase (LSAB) method. RESULTS: the average rupture time was 16.6 hours. The ratio of the TNF-α expression in the Control and Study Groups did not show a significant difference (χ2=6.6; p=0.08). In the Study Group, there was no correlation between the degree of chorioamnionitis and the intensity of TNF-α expression (Spearman's coefficient (Rs)=0.4; p=0.02). CONCLUSIONS: there was no significant difference between the TNF-α expression in ovular membranes with premature or opportune rupture; in the Study Group, there was significant association between TNF-α expression and the degree of chorioamnionitis, and there was no association between rupture time and the intensity of TNF-α expression.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(3):131-137
DOI 10.1590/S0100-72032009000300005
PURPOSE: to evaluate the effects of tamoxifen on the expression of TGF-β and p27 proteins in polyps and adjacent endometrium of women after menopause. METHODS: prospective study with 30 post-menopausal women with diagnosis of breast cancer, taking tamoxifen (20 mg/day), presenting diagnosis of suspect endometrial polyps through transvaginal ultrasonography, and submitted to diagnostic and surgical hysterectomy to withdraw the polyps and adjacent endometrium. A immunohistochemical study has been done to verify the expression of the TGF-β and p27 proteins in the polyps and adjacent endometrium. These proteins' quantification has been done by morphometry. RESULTS: the patients' average age was 61.7 years old; their average age at the menopause onset was 49.5; and the average of using tamoxifen was 25.3 months. The average concentration of positive cells for TGF-β protein in the glandular and stroma polyp epithelium was 62.6±4.5 cells/mm². For the p27, in the glandular polyp epithelium, it was 24.2±18.6 cells/mm² and for the stroma, 19.2±15.2 cells/mm². There was no significant difference between the expression of TGF-β and p27 in the glandular epithelial form the polyps and the adjacent endometrium. The expression of proteins in the polyp and adjacent endometrium with its respective glandular and stroma epithelium showed a significant difference for the p27 protein (r=0.9, p<0.05). CONCLUSIONS: we have concluded that the TGF-β expression is not related to the effect of tamoxifen on the growing of endometrial polyps, but the absence of polyps' malignization by tamoxifen may be explained by the high expression of p27 protein in its glandular epithelium.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(3):131-137
DOI 10.1590/S0100-72032009000300005
PURPOSE: to evaluate the effects of tamoxifen on the expression of TGF-β and p27 proteins in polyps and adjacent endometrium of women after menopause. METHODS: prospective study with 30 post-menopausal women with diagnosis of breast cancer, taking tamoxifen (20 mg/day), presenting diagnosis of suspect endometrial polyps through transvaginal ultrasonography, and submitted to diagnostic and surgical hysterectomy to withdraw the polyps and adjacent endometrium. A immunohistochemical study has been done to verify the expression of the TGF-β and p27 proteins in the polyps and adjacent endometrium. These proteins' quantification has been done by morphometry. RESULTS: the patients' average age was 61.7 years old; their average age at the menopause onset was 49.5; and the average of using tamoxifen was 25.3 months. The average concentration of positive cells for TGF-β protein in the glandular and stroma polyp epithelium was 62.6±4.5 cells/mm². For the p27, in the glandular polyp epithelium, it was 24.2±18.6 cells/mm² and for the stroma, 19.2±15.2 cells/mm². There was no significant difference between the expression of TGF-β and p27 in the glandular epithelial form the polyps and the adjacent endometrium. The expression of proteins in the polyp and adjacent endometrium with its respective glandular and stroma epithelium showed a significant difference for the p27 protein (r=0.9, p<0.05). CONCLUSIONS: we have concluded that the TGF-β expression is not related to the effect of tamoxifen on the growing of endometrial polyps, but the absence of polyps' malignization by tamoxifen may be explained by the high expression of p27 protein in its glandular epithelium.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2007;29(11):568-574
DOI 10.1590/S0100-72032007001100004
PURPOSE: to evaluate the histological differentiation pattern in superficial peritoneum lesions and in deeply infiltrating endometriosis (DIE) in utero-sacral ligament, bowel (rectum and sigmoid colon) and rectovaginal septum. METHODS: this prospective non-randomized study included 139 patients. Of the total, 234 biopsies were obtained (179 with DIE - Deeply Group - and 55 superficial endometriosis - Superficial Group). From the 179 DIE lesions (Depply Group), 15 were obtained from rectovaginal septum, 72 from rectosigmoid nodules and 92 from utero-sacral ligament. Biopsies were classified in well-differentiated glandular pattern, undifferentiated glandular, mixed glandular differentiation and pure stromal disease, based on specific morphological classification. RESULTS: in the Depply Group (DIE), 33.5% of the biopsies showed undifferentiated glandular pattern and 46.9% mixed glandular pattern. In the Superficial Group, there was the predominance of the well-differentiated glandular pattern (41.8%). Comparing specifically the different localizations of the biopsies of DIE lesions (Deeply Group), a predominance of mixed pattern in bowel nodules (61.1%) was noted. CONCLUSIONS: it was possible to conclude that there is a predominance of well-differentiated glandular pattern in superficial endometriosis, a predominance of mixed undifferentiated in deeply pelvic endometriosis and, specifically studying endometriosis from the rectum and sigmoid colon, there was a predominance of the mixed pattern.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2007;29(11):568-574
DOI 10.1590/S0100-72032007001100004
PURPOSE: to evaluate the histological differentiation pattern in superficial peritoneum lesions and in deeply infiltrating endometriosis (DIE) in utero-sacral ligament, bowel (rectum and sigmoid colon) and rectovaginal septum. METHODS: this prospective non-randomized study included 139 patients. Of the total, 234 biopsies were obtained (179 with DIE - Deeply Group - and 55 superficial endometriosis - Superficial Group). From the 179 DIE lesions (Depply Group), 15 were obtained from rectovaginal septum, 72 from rectosigmoid nodules and 92 from utero-sacral ligament. Biopsies were classified in well-differentiated glandular pattern, undifferentiated glandular, mixed glandular differentiation and pure stromal disease, based on specific morphological classification. RESULTS: in the Depply Group (DIE), 33.5% of the biopsies showed undifferentiated glandular pattern and 46.9% mixed glandular pattern. In the Superficial Group, there was the predominance of the well-differentiated glandular pattern (41.8%). Comparing specifically the different localizations of the biopsies of DIE lesions (Deeply Group), a predominance of mixed pattern in bowel nodules (61.1%) was noted. CONCLUSIONS: it was possible to conclude that there is a predominance of well-differentiated glandular pattern in superficial endometriosis, a predominance of mixed undifferentiated in deeply pelvic endometriosis and, specifically studying endometriosis from the rectum and sigmoid colon, there was a predominance of the mixed pattern.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2007;29(6):310-316
DOI 10.1590/S0100-72032007000600006
PURPOSE: to evaluate the expression of cyclooxygenase-2 (COX-2) in ductal carcinoma in situ (DCIS), invasive ductal carcinoma (IDC), adjacent normal stroma, and epithelium. The correlation of expression levels with nuclear grade, histological grade, presence or absence of comedonecrosis, tumor size, and patient age was also analyzed. METHODS: forty-seven surgical samples obtained from mastectomy and quadrantectomy with simultaneous DCIS and IDC, stages I and II were included. Anti-COX-2 polyclonal antibodies were used to determine enzyme expression. Samples were classified from zero to three, in accordance with number and intensity of stained cells. RESULTS: COX-2 was positively expressed in IDC, DCIS, and normal epithelium in 86.7, 84.4, and 73.3% of the cases, respectively. Concerning nuclear grade (NG), COX-2 expression was positive in 80% of cases of NG-I; in 81.5 and 78.9% of NG II, and in 88.5 and 96.1% of NG III in DCIS and IDC, respectively. COX-2 expression occurred in 78.9% of DCIS with comedonecrosis and in 89.3% without comedonecrosis. As to histological grade (HG) of IDC, COX-2 was positive in 83.3% of HG-I; 89.9% of HG-II and 80% of HG-III. Concerning tumor diameter, COX-2 was present in 86.1% of IDC cases and in 83.3% of DCIS larger than 2 cm and in 11% of IDC and DCIS tumors ≤2 cm. The age range ≥50 years presented 90% expression for IDC and 86.7% for DCIS, and the expression was 92.5% for both IDC and DCIS in patients <50 years. CONCLUSIONS: our results demonstrated high correlation between COX-2 expression in IDC, DCIS and in the normal epithelium, which is consistent with the hypothesis that COX-2 over expression is an early event in breast carcinogenesis. There was no significant correlation between COX-2 expression in IDC and DCIS and nuclear grade, histological grade, presence of comedonecrosis, age group and tumor size.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2007;29(6):310-316
DOI 10.1590/S0100-72032007000600006
PURPOSE: to evaluate the expression of cyclooxygenase-2 (COX-2) in ductal carcinoma in situ (DCIS), invasive ductal carcinoma (IDC), adjacent normal stroma, and epithelium. The correlation of expression levels with nuclear grade, histological grade, presence or absence of comedonecrosis, tumor size, and patient age was also analyzed. METHODS: forty-seven surgical samples obtained from mastectomy and quadrantectomy with simultaneous DCIS and IDC, stages I and II were included. Anti-COX-2 polyclonal antibodies were used to determine enzyme expression. Samples were classified from zero to three, in accordance with number and intensity of stained cells. RESULTS: COX-2 was positively expressed in IDC, DCIS, and normal epithelium in 86.7, 84.4, and 73.3% of the cases, respectively. Concerning nuclear grade (NG), COX-2 expression was positive in 80% of cases of NG-I; in 81.5 and 78.9% of NG II, and in 88.5 and 96.1% of NG III in DCIS and IDC, respectively. COX-2 expression occurred in 78.9% of DCIS with comedonecrosis and in 89.3% without comedonecrosis. As to histological grade (HG) of IDC, COX-2 was positive in 83.3% of HG-I; 89.9% of HG-II and 80% of HG-III. Concerning tumor diameter, COX-2 was present in 86.1% of IDC cases and in 83.3% of DCIS larger than 2 cm and in 11% of IDC and DCIS tumors ≤2 cm. The age range ≥50 years presented 90% expression for IDC and 86.7% for DCIS, and the expression was 92.5% for both IDC and DCIS in patients <50 years. CONCLUSIONS: our results demonstrated high correlation between COX-2 expression in IDC, DCIS and in the normal epithelium, which is consistent with the hypothesis that COX-2 over expression is an early event in breast carcinogenesis. There was no significant correlation between COX-2 expression in IDC and DCIS and nuclear grade, histological grade, presence of comedonecrosis, age group and tumor size.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2006;28(1):18-23
DOI 10.1590/S0100-72032006000100004
PURPOSE: to characterize postmenopausal endometrial polyps and to determine risk for concomitant premalignant and malignant pathology. METHODS: a retrospective study including 82 postmenopausal women with a histological diagnosis of endometrial polyps who underwent hysteroscopic polypectomy, after a diagnosis of endometrial thickening made by transvaginal ultrasound, was performed. Medical reports provided clinical and gynecological history, data related to the operative hysteroscopy and definitive histological findings. RESULTS: among the 82 patients who underwent hysteroscopic polypectomy, 10.9% were receiving some type of hormonal therapy. Twenty-eight women (34.1%) reported abnormal vaginal bleeding. Single polyp was encountered in 56 women (68.3%), two polyps were found in 19 cases (23.2%) and in 7 cases (3.6%), three or more polyps were found. The definitive histopathologic analysis revealed 63 (76.8%) benign polyps, 17 (20.8%) hyperplastic polyps (10 cases 12.2% - of simple endometrial hyperplasia without cytologic atypia and 7 cases 8.6% - of complex endometrial hyperplasia without cytologic atypia). Two polyps (2.4%) were diagnosed as harboring neoplasia. For the statistical analysis we employed chi2 test improved by Yates. The authors correlated the polyps' histology with the occurrence of abnormal vaginal bleeding (p=0.0056), number of endometrial polyps (p=0.921) and time after menopause (p=0.720). CONCLUSIONS: endometrial polyps are commonly found entities in postmenopausal women, related with low frequency to endometrial hyperplasia or carcinomas and only histological evaluation seems to allow the exclusion of premalignant and malignant pathology.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2006;28(1):18-23
DOI 10.1590/S0100-72032006000100004
PURPOSE: to characterize postmenopausal endometrial polyps and to determine risk for concomitant premalignant and malignant pathology. METHODS: a retrospective study including 82 postmenopausal women with a histological diagnosis of endometrial polyps who underwent hysteroscopic polypectomy, after a diagnosis of endometrial thickening made by transvaginal ultrasound, was performed. Medical reports provided clinical and gynecological history, data related to the operative hysteroscopy and definitive histological findings. RESULTS: among the 82 patients who underwent hysteroscopic polypectomy, 10.9% were receiving some type of hormonal therapy. Twenty-eight women (34.1%) reported abnormal vaginal bleeding. Single polyp was encountered in 56 women (68.3%), two polyps were found in 19 cases (23.2%) and in 7 cases (3.6%), three or more polyps were found. The definitive histopathologic analysis revealed 63 (76.8%) benign polyps, 17 (20.8%) hyperplastic polyps (10 cases 12.2% - of simple endometrial hyperplasia without cytologic atypia and 7 cases 8.6% - of complex endometrial hyperplasia without cytologic atypia). Two polyps (2.4%) were diagnosed as harboring neoplasia. For the statistical analysis we employed chi2 test improved by Yates. The authors correlated the polyps' histology with the occurrence of abnormal vaginal bleeding (p=0.0056), number of endometrial polyps (p=0.921) and time after menopause (p=0.720). CONCLUSIONS: endometrial polyps are commonly found entities in postmenopausal women, related with low frequency to endometrial hyperplasia or carcinomas and only histological evaluation seems to allow the exclusion of premalignant and malignant pathology.