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  • Title: Simultaneously detected endometrial and ovarian carcinomas--a prospective clinicopathologic study of 74 cases: a gynecologic oncology group study.
    Author: Zaino R, Whitney C, Brady MF, DeGeest K, Burger RA, Buller RE.
    Journal: Gynecol Oncol; 2001 Nov; 83(2):355-62. PubMed ID: 11606097.
    Abstract:
    OBJECTIVES: The coexistence of carcinomas of the endometrium and ovary occurs in about 10% of women with ovarian carcinoma. It is often unclear whether this represents synchronous primary tumors or metastasis from endometrium to ovary, or from ovary to endometrium; consequently, staging, therapy, and expected outcome are uncertain. The Gynecologic Oncology Group sought to study patients with simultaneously detected adenocarcinomas in the endometrium and ovary with disease grossly confined to the pelvis to explore the possible correlation among discrete tumor subsets, natural history, and survival. METHODS: Between 1985 and 1991, 85 patients were prospectively enrolled, of whom 74 were eligible. All were initially treated with total abdominal hysterectomy, bilateral salpingo-oophorectomy, and staging laparotomy, with radiation and chemotherapy left to the discretion of the treating physician and patient. Fifteen pathologic variables were examined to identify differences in tumor behavior. RESULTS: Of the 74 patients, 23 (31%) had microscopic spread of tumor in the pelvis or abdomen. Sixty-four (86%) patients had endometrioid carcinomas in both the endometrium and the ovary, and endometriosis was found in the ovary of 23 (31%) patients. There was concordance between the histologic grade of the tumor in the ovary and the uterus in 51 (69%) patients. The estimated probability of recurrence 5 years following staging surgery is 15.1% (95% confidence interval (CI): 8.7-25.2%). The presence of metastasis discriminated two groups of patients that experienced different probabilities of recurrence within 5 years: 10.0% (95% CI: 4.32-21.3%) for those with tumors confined to the uterus and ovary and 27.1% (95% CI: 13.0-48.5%) for those with metastasis (hazard ratio = 4.6, P = 0.006). The histologic grades of ovarian and uterine tumors also distinguished groups of patients with different probabilities of recurrence at 5 years: 8.0% (95% CI: 2.8-21.3%) for those patients with no more than grade 1 disease at either site and 22.4% (95% CI: 11.8-38.4%) for those with a higher grade in either the ovary or the endometrium (hazard ratio = 3.1, P = 0.047). The estimated overall probability of surviving 5 years is 85.9% and that of surviving 10 years is 80.3%. CONCLUSION: The prognosis for women with simultaneously detected carcinomas in the uterus and ovary with gross disease confined to the pelvis is surprisingly good, particularly for those with disease microscopically limited to the uterus and ovary or of low histologic grade.
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