title: Prospective multicenter evaluation of the morphometric D-score for prediction of the outcome of endometrial hyperplasias.
abstract: Prospective multicenter evaluation of the WHO classification and the morphometric D-score to predict endometrial hyperplasia cancer progression. In 132 endometrial hyperplasias WHO classification was performed by two experienced gynecologic pathologists. The D-score was assessed blindly by technicians in a routine diagnostic setting. Development of endometrial carcinoma during a 1-10-year follow-up was used as the end point. Eleven of 132 patients (8%), 10 of 61 (16%) atypical hyperplasias, and 1 of 71 (1%) nonatypical hyperplasias developed cancer. Twenty-six curettings had a D-score < or = 0 ("unfavorable" or endometrial intraepithelial neoplasia) of which 10 (38%) developed cancer. None of the 86 cases with a D-score > 1 ("favorable") and one of the 20 (5%) cases with 0 < D-score < or = 1 ("uncertain") developed cancer. Sensitivity of the D-score was 100%, specificity 82%, the positive and negative predictive values were 38% and 100%, respectively. These values are similar to those in three prior retrospective D-score studies but higher than the WHO values (which are 91%, 58%, 16%, and 99%, respectively). The D-score in endometrial hyperplasias is a more sensitive and specific marker for cancer prediction than the WHO classification, can be assessed in a routine clinical setting on standard hematoxylin and eosin sections (15-30 minutes per case), and is highly reproducible and cost-effective (U.S. $50 per case).
authors: Department of Pathology, Free University Medical Center, Amsterdam, The Netherlands. jpabaak@yahoo.com
authors: J P
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authors: Baak
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authors: Ørbo
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authors: van Diest
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authors: Jiwa
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authors: de Bruin
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authors: Broeckaert
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authors: Snijders
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authors: Boodt
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authors: Fons
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authors: Verheijen
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authors: Kenemans
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016002:Discriminant Analysis; D018450:Disease Progression; D004714:Endometrial Hyperplasia / Q000145:classification / Q000473:pathology*; D016889:Endometrial Neoplasms / Q000473:pathology; D005260:Female; D006801:Humans; D008875:Middle Aged; D015999:Multivariate Analysis; D010336:Pathology / Q000379:methods; D011237:Predictive Value of Tests; D011379:Prognosis; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D016037:Single-Blind Method; D014944:World Health Organization