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Using a Panel of Immunohistochemical Stains to Determine Risk of Lymph Node Metastases in Women with Endometrioid Adenocarcinoma of the Endometrium

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Author(s): Karina Zapiecki | Greg A. Miller | Zhen Zhou | Kelly J. Manahan | John P. Geisler

Journal: Journal of Cancer Therapy
ISSN 2151-1934

Volume: 02;
Issue: 04;
Start page: 497;
Date: 2011;
Original page

Keywords: Correlation | Estrogen Receptor | Progesterone Receptor | p53 | Endometrial Cancer | Nodes

ABSTRACT
Objectives: The purpose of this study was to determine whether a correlation exists between a panel of immunohistochemical stains (consisting of estrogen receptor (ER), progesterone receptor (PR) and wild type p53 (p53)) and nodal status in women with endometrioid endometrial cancer. Methods: Three hundred forty-three women underwent total abdominal hysterectomy, bilateral salpingo-oophorectomy, bilateral pelvic and para-aortic lymph node dissection performed. All tumors were stained for ER, PR and p53. This panel was compared to the patient’s nodal status and other clinic-pathologic factors. All data was collected from the patients’ charts. Results: One hundred eight patients had grade 1 tumors (83.3% node negative), one hundred forty three had grade 2 (86.6% node negative), and seventy had grade 3 (74.3% node negative). One hundred thirty six patients (39.6%) had tumors that were positive for ER, PR and negative for p53. Twenty eight patients (8.1%) had tumors that were negative for ER, PR and positive for p53. One hundred seventy nine patients (52.1%) had tumors that had mixed staining. Only 6 (4.4%) patients with ER+, PR+, p53– tumors had positive node nodes (P = 0.005). None of the sixty patients with grade 1 tumors that stained ER+, PR+, p53– had positive nodes found. Conclusion: In women with grade 1 disease, no positive nodes were found if the tumors stained positively for ER and PR and negatively for p53. Further studies will look at staining in diagnostic biopsies specimens and their correlation with nodal status.
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