Pruritic eruptions in older adults: characterization of a patch test negative cohort

Workup for chronic itch in older adults varies significantly across practices. Patch testing remains an important piece of the workup for chronic pruritic rashes in this population, however, there remains a subset of these patients who test negative. This descriptive study sought to better characterize shared clinical and histopathologic features of patch negative older adults to improve understanding of contributing etiologies for itch in this group.