Figure 2: Flow diagram of methods in this study. The dermoscopic images of patients with lip and facial nonlip lentigines were collected retrospectively, set side by side for comparison with previously published dermoscopic patterns of lip and nonlip pigmented lesions, and then sent for blind review by three clinicians (site of lentigines were withheld). The interrater consistency of reading results were calculated by Cronbach's alpha using SPSS 20. The sensitivity, specificity, PPV and NPV of each dermoscopic pattern in lip and nonlip lentigines were calculated, respectively. PPV: Positive predictive value, NPV: Negative predictive value.