title: Do you know this syndrome?
abstract: Laugier-Hunziker syndrome is an acquired macular hyperpigmentation of the oral and genital mucosa, often associated with longitudinal melanonychia. We report a case of longitudinal melanonychia on fingernails and toenails, hutchinson's signal and lenticular pigmentation of her lips and oral mucosa. Histopathological analysis is typical and had a broad differential diagnosis. This is a rare and benign entity, which should be included in the differential diagnosis of mucocutaneous hyperpigmentation.
authors.affiliation: Hospital Universitário Getúlio Vargas, Universidade Federal do Amazonas, Manaus, AM, Brasil.
authors.forename: Priscilla Maria Rodrigues
authors.initials: PM
authors.lastname: Pereira
authors.forename: Carlos Alberto Chirano
authors.initials: CA
authors.lastname: Rodrigues
authors.forename: Livia Lima de
authors.initials: LL
authors.lastname: Lima
authors.forename: Sandra Adolfina Romero
authors.initials: SA
authors.lastname: Reyes
authors.forename: Adriana Valquíria de Oliveira
authors.initials: AV
authors.lastname: Mariano
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D017495:Hyperpigmentation / Q000473:pathology*; D008875:Middle Aged; D009061:Mouth Mucosa / Q000473:pathology*; D009260:Nail Diseases / Q000473:pathology*; D013577:Syndrome