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Review
. 2009 Sep 26;9(1):17-22.
doi: 10.1007/s12522-009-0034-9. eCollection 2010 Mar.

Screening, epidemiology, molecular biology, and treatment strategies for endometriosis-associated ovarian cancer

Hiroshi Kobayashi  1
Affiliations
Review

Screening, epidemiology, molecular biology, and treatment strategies for endometriosis-associated ovarian cancer

Hiroshi Kobayashi. Reprod Med Biol. .

Abstract

Objectives: This article reviews recent data on the biology, pathogenesis and pathophysiology of the different entity of epithelial ovarian cancer (EOC).

Study design: The present article reviews the English language literature for screening, epidemiology, clinical diagnosis, natural history, preclinical and clinical trials, and promising molecular targets on EOC, particularly for clear cell EOC (cEOC) based on the gene expression profiling studies.

Results: Prospective ovarian cancer screening trials in Japan showed that (1) serous-type EOC (sEOC) may exhibit a rapid progression possibly through de novo carcinogenesis, (2) the EOC risk was elevated significantly among patients with ovarian endometrioma (SIR = 8.95), (3) advancing age (>40 years) and the diameter of endometriomas (>9 cm) were independent predictors of development of EOC, (4) the benign-appearing ovarian masses are present several years before the EOC diagnosis in patients with endometriosis-associated EOC, and (5) the slightly elevated CA125 level is also typically present many years (>3 years) before the diagnosis in these patients. Upregulation of HNF-1beta and PLK-Emi1 genes were specifically detected in cEOC. In addition, the therapy currently used in renal cell carcinoma (RCC) should be considered as an attractive therapeutic option for cEOC.

Conclusions: Ovarian endometrioma could be viewed as a neoplastic process, particularly in perimenopausal women. Understanding the mechanisms of endometriosis development and elucidating its pathogenesis and pathophysiology are intrinsic to prevention and the search for effective therapies of endometriosis-associated EOC.

Keywords: Endometriosis; Epidemiology; Ovarian cancer; Treatment strategies.

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