title: sQuiz your knowledge: erythematous nodule on the leg? Use your dermoscope.
authors.affiliation: Department of Dermatovenereology of Centro Hospitalar de Lisboa Norte, Lisboa.
authors.forename: Ana I
authors.initials: AI
authors.lastname: Teixeira
authors.affiliation: Department of Dermatovenereology of Hospital Garcia de Horta, Almada, Portugal.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Coelho