A 29-year-old primigravida presents at 27 weeks gestation with scaly, erythematous papulopustular lesions all over her body. She has no history of any psoriasis or any other skin diseases. Antenatal investigations are normal. Histopathology of the lesion shows inflammatory infiltrate in the dermis. Intraepithelial aggregates of neutrophils forming pustules were seen. What is the diagnosis?
Source: Kondo, Rogerio Nabor et al. Anais Brasileiros de Dermatologia 88.6 Suppl 1 (2013): 186–189. PMC. Web. 22 Sept. 2016.