title: Lichen planus pemphigoides associated with pregnancy mimicking pemphigoid gestationis.
abstract: Lichen planus pemphigoides (LPP) is a rare condition characterized by tense blisters that arise on lesions of lichen planus (LP) and on unaffected skin. We present the case of a 25-year-old pregnant woman at 12 weeks' gestation who developed an acute bullous eruption after 5 months of worsening LP. Similarities to pemphigoid gestationis (PG) included lesions around the periumbilical area and multiple urticarial erythematous papules and plaques in addition to linear C3 and IgM deposition along the basement membrane zone (BMZ) on direct immunofluorescence (DIF).
authors.affiliation: Department of Dermatology, University of Puerto Rico School of Medicine, Río Piedras.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Rullán
authors.affiliation: Department of Dermatology, University of Puerto Rico School of Medicine, Río Piedras.
authors.forename: Nicole C
authors.initials: NC
authors.lastname: Diaz
authors.affiliation: Department of Dermatology, University of Puerto Rico School of Medicine, Río Piedras.
authors.forename: Miguel
authors.initials: M
authors.lastname: Vazquez-Botet
mesh_terms: D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008010:Lichen Planus / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology; D006559:Pemphigoid Gestationis / Q000175:diagnosis*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology
chemical_list: D000305:Adrenal Cortex Hormones