Prurigo (PP) and pruritic folliculitis of pregnancy (PFP) are poorly characterized entities. Traditionally classified under specific dermatoses of pregnancy, they were reclassified under a new umbrella entity, atopic eruption of pregnancy (AEP), which also includes atopic dermatitis (AD) that can worsen or present for the first time in pregnancy. Still, several aspects of AEP have not been adequately elucidated. It needs to be clarified whether it is the intrinsic ("nonallergic" or "atopiform dermatitis") or extrinsic (immunoglobulin E associated) AD that is affected by pregnancy. Future studies need to examine the postpartum prognosis of AD that develops for the first time during gestation. A revision of diagnostic criteria of AEP will allow a more accurate estimate of its prevalence, as well as clarification of the relationship between AD and specific dermatoses, such as PP and PFP. In this context, this review discusses the history, epidemiologic data, clinicopathologic features, and management of these entities. (C) 2016 Elsevier Inc. All rights reserved.
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