Figure 1.
The photomicrograph depicts a broad lesion with irregular epidermal thinning and thickening. Note cases are ordered by increasing treatment severity and do not reflect the actual order of case presentation to participants. Write-in diagnoses exclude missing data from one pathologist. Widely varying terminology was used by pathologists for its histopathologic interpretation and diagnosis. aMissing data from one participant not shown. bMapping of write-in diagnoses to least and most severe MPATH-Dx categories performed only when needed. NA, not applicable.