International Journal of Surgical Oncology / 2012 / Article / Tab 1

Review Article

Atypical Ductal Hyperplasia at the Margin of Lumpectomy Performed for Early Stage Breast Cancer: Is there Enough Evidence to Formulate Guidelines?

Table 1

Interobserver variability among pathologists in cases of borderline ductal proliferative lesions.

Investigator no. of pathologists/no. of slides reviewedConcordance rates (%)

6/245/5 agreed 0%
Rosai [21]4/5 agreed 20%
3/5 agreed 50%

5/106/6 agreed 58%
Schnitt et al. [22]*5/6 agreed 71%
4/6 agreed 92%

9/819/9 agreed 32%
Jain et al. [23]8/9 agreed 52%
7/9 agreed 63%

Standardized criteria and formal education differentiating proliferative lesions provided to pathologist prior to reviewing slides.

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