Two brownish reticulated patches on the thigh

Sofia Antunes-Duarte, Dermatology Department, Hospital de Santa Maria, Centro Hospitalar Universitário, Lisbon, Portugal Rita Bouceiro Mendes, Dermatology Department, Hospital de Santa Maria, Centro Hospitalar Universitário, Lisbon, Portugal Luís Soares de Almeida, Dermatology Department, Hospital de Santa Maria, Centro Hospitalar Universitário; Unit of Research in Dermatology, Institute of Molecular Medicine, Faculty of Medicine, University of Lisbon. Lisbon, Portugal

A 41-year-old healthy man presented with a 2-year history of asymptomatic, progressively enlarging lesions on the external aspect of the left thigh. Its onset could not be correlated with trauma, medication or contact with any substance.