Abstract
Purpose
Endometrial cancer can be divided into two types: endometrioid Type 1 (G1, G2) has a hormonal driven etiology, while Type 2 is more aggressive (G3 endometrioid, clear cell and serous cancer type) and estrogen independent. We noticed an increase of more aggressive G3 endometrioid endometrial adenocarcinomas. This observation is of relevance for daily clinical practice because therapy depends on the histopathological grading and myometrial invasion. G3 cancers or myometrial invasion of more than 50% should be hysterectomized including bilateral adnexectomy with pelvine and paraaortal lymphadenectomy. In G1/G2 and lower infiltration levels, hysterectomy with adnexectomy without lymphadenectomy is sufficient.
Methods
Data of the ASF Statistic were used to analyze the changes in the incidences of patients with endometrioid cancer, grading groups and their first diagnosed stages between 2006 and 2014.
Results
2611 patients, with 243–341 women per year, were analyzed. The number of diagnosed G1 tumors increased from 25 to 37% and the G3 tumors from 18 to 32%, whereas the G2 cancers decreased from 58 to 31%. Despite the rise of G3 tumors, an increase in age at diagnosis was not observed. The proportions of initial diagnosed stages (FIGO I–IV) in each grading remained constant over time.
Conclusion
Potential consequences in treatment recommendations and prognosis urge attention to the detected increase of G3 endometrioid cancers.
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CM Data management, data analysis, manuscript writing. AB Manuscript editing. GC Manuscript editing. JH Project development, manuscript editing.
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We affirm that the study was conducted according to the ethical principles of the Declaration of Helsinki. The independent Swiss Ethics Committee EKNZ (Ethikkommission Nordwest- und Zentralschweiz) approved that this study meets the general ethical principles for research and issued the declaration of no objection.
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Mang, C., Birkenmaier, A., Cathomas, G. et al. Endometrioid endometrial adenocarcinoma: an increase of G3 cancers?. Arch Gynecol Obstet 295, 1435–1440 (2017). https://doi.org/10.1007/s00404-017-4370-4
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DOI: https://doi.org/10.1007/s00404-017-4370-4