Predictive Value of Positive Margins in Diagnostic Biopsies of Dysplastic Nevi

Figure 1

PPV of positive margins in diagnostic biopsies of DN calculated using equation (1) and presented here as a percentage. Six studies, including our own, provide data able to be analyzed to obtain the PPV of positive margins in diagnostic biopsies of DN. In each study, the PPV of positive diagnostic margins is less than 50%.