Painful violaceous pigmentation, a clinical challenge and diagnostic approach in a tropical country. ACTA MEDICA PERUANA, [S. l.], v. 39, n. 2, 2022. DOI: 10.35663/amp.2022.392.2307. Disponível em: https://amp.cmp.org.pe/index.php/AMP/article/view/2307. Acesso em: 1 apr. 2025.