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Endometrial cancer and microsatellite instability status

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Kanopiene D., Vidugiriene J., Povilas Valuckas K., Smailyte G., Uleckiene S., Bacher J.
Open Medicine
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2014
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vol. 10
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issue 1
EN
Microsatellite instability (MSI) is an important factor in the development of various cancers as an identifier of a defective DNA mismatch repair system. The objective of our study was to define the association between microsatellite instability status and traditional clinicopathologic characteristics of endometrioid type adenocarcinoma. Material and methods: MSI status of endometrial cancer was examined by employing the Promega MSI Analysis System. This system uses 5 mononucleotide markers to identify MSI in tumour and normal tissue DNA (BAT-25, BAT-26, NR-21, NR-24, and MONO-27), and 2 pentanucleotide markers (Penta C and Penta D) for specimen identification. In this study, we investigated MSI status in 109 endometrial carcinomas. Results and conclusions: One hundred (92%) of 109 endometrial cancers showed endometrioid type histology and only 9 (8%) non-endometrioid type. MSI-high was found in 17% (17/100) of endometrioid type adenocarcinomas, in 0% (0/9) of non-endometrioid carcinomas. Selected clinicopathologic parameters for endometrioid type adenocarcinomas were compared to the MSI status which was separated into two groups – MSI-high and MSI stable. The results showed that MSI-high status was related to clinicopathologic parameters such as deep myometrial invasion and higher histologic grade in endometrioid type adenocarcinomas.
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Independent prognostic factors in endometrial cancer: a single institution review

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Uharček P., Mlynček M., Ravinger J., Lajtman E., Matejka M.
Open Medicine
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2011
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vol. 6
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issue 3
294-299
EN
The purpose of this study was to conduct a clinical and pathologic review of endometrial cancers diagnosed and surgically treated in our institution to evaluate results of treatment in relation to current international recommendations. We retrospectively evaluated the clinical history, treatment and follow-up of patients with histologically confirmed endometrial cancer treated in Faculty Hospital Nitra, Slovakia from 1990 to 2005. Data were abstracted regarding tumor histology, grade, age, parity, stage, diabetes, use of oral contraceptives, BMI, survival and treatment modalities including surgery, radiation therapy, chemotherapy, hormonal therapy, and combinations thereof. One hundred and thirty nine patients received surgical treatment for endometrial cancer: stage I -101 (72,6%), stage II - 9 (6,5%), stage III - 23 (16,6%) and stage IV - 6 (4,3%). Tumors were well differentiated in 87(62,6%), moderately differentiated in 32 (23%) and poorly differentiated in 20 (14,4%). There were 45 (32,4%) premenopausal patients and 94 (67,6%) postmenopausal. In multivariate statistical analysis we identified FIGO stage, tumor type, tumor grade, nodal status and depth of myometrial invasion as independent prognostic factors for overall survival, and FIGO stage, nodal status, and tumor grade as independent prognostic factors for recurrence-free interval.
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