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In this study we observed changes in macrophage number and phenotype during cutaneous inflammation in AD. Dendritic cell numbers did not change; however, phenotypically dendritic cell and macrophage subpopulations showed increasing overlap during inflammation in AD skin. We show for the first time that within tissue-specific macrophage populations further subpopulations are present, and that monocyte-derived cells may express markers for both dendritic cells and macrophages. Our results point to the existence of a heterogeneous pool of macrophage/dendritic cell-like cells, from which subpopulations of dermal macrophages and dendritic cells arise.