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  • Title: An Assessment of Prognostic Factors, Adjuvant Treatment, and Outcomes of Stage IA Polyp-Limited Versus Endometrium-Limited Type II Endometrial Carcinoma.
    Author: Liang LW, Perez AR, Cangemi NA, Zhou Q, Iasonos A, Abu-Rustum N, Alektiar KM, Makker V.
    Journal: Int J Gynecol Cancer; 2016 Mar; 26(3):497-504. PubMed ID: 26825840.
    Abstract:
    OBJECTIVE: To determine clinical outcomes in patients with stage IA polyp-limited versus endometrium-limited high-grade (type II) endometrial carcinoma (EC). METHODS: We identified all cases of stage IA polyp-limited or endometrium-limited high-grade EC (FIGO grade 3 endometrioid, serous, clear cell, or mixed) who underwent simple hysterectomy, bilateral salpingo-oophorectomy, peritoneal washings, omental biopsy, and pelvic and para-aortic lymph node dissection and received adjuvant treatment at our institution from October 1995 to November 2012. Progression-free survival (PFS) and overall survival (OS) by histology, adjuvant therapy, and polyp-limited versus endometrium-limited disease status were determined using log-rank test. We analyzed 3 treatment groups: patients who received chemotherapy with or without radiation therapy (RT) (intravaginal or pelvic); patients who received RT (intravaginal RT or pelvic RT) alone; and patients who received no adjuvant treatment. RESULTS: In all, 85 women underwent hysterectomy/salpingo-oophorectomy; all were surgically staged with lymph node assessment and had stage IA EC with no lymphovascular or myometrial invasion. Median follow-up for survivors was 46.5 months (range, 1.98-188.8 months). Forty-nine patients (57.6%) had polyp-limited disease, and 36 (42.4%) had endometrium-limited disease. There were no significant differences in clinicopathologic characteristics between patients within the 3 treatment groups with regard to age at diagnosis, mean body mass index, ECOG (Eastern Cooperative Oncology Group) performance status, polyp-limited or endometrium-limited disease, diabetes, or race. The 3-year PFS rate was 94.9% and the 3-year OS rate was 98.8%. Univariate PFS and OS analysis revealed that age was a relevant prognostic factor (PFS hazard ratio [95% confidence interval], 1.13 [1.02-1.25]; P = 0.022; OS hazard ratio [95% confidence interval], 1.19 [1.02-1.38]; P = 0.03). Adjuvant treatment did not impact outcomes. CONCLUSIONS: Clinical outcomes of surgical stage IA type II polyp- or endometrium-limited high-grade epithelial EC are equally favorable regardless of histologic subtype or adjuvant therapy received. The benefit of adjuvant therapy in this select group remains to be determined.
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