Angel MAL, Andrade LGM, López LEO, Valencia AMR, Romero HV, et al. (2019) Hyperchromic and Erythematous Pityriasis: Case Report and Review of the Literature. J Dermatol Res Ther 5:073.


© 2019 Angel MAL, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

REVIEW ARTICLE | OPEN ACCESS DOI: 10.23937/2469-5750/1510073

Hyperchromic and Erythematous Pityriasis: Case Report and Review of the Literature

Medina Andrade Luis Angel, MD1*, Laura Guadalupe Medina Andrade, MD2, Lizbeth Elisa Oropeza López, MD3, Andrea Marianne Rodriguez Valencia, MD1, Haizel Valencia Romero, MD1, Angel Adrian Moreno Piña, MD1, Araceli Esteban Chaparro, MD1, and Alberto Robles Méndez Hernández, MD4.

1Hospital General de Zona 30, IMSS, Mexico City, Mexico

2Dermatology Department, Hospital Regional Licenciado Adolfo López Mateos, ISSSTE, Mexico City, Mexico

3Internal Medicine Department, Hospital General de Zona 1a, IMSS, Mexico City, Mexico

4General Surgery Department, Universidad La Salle, Hospital Angeles Metropolitano, Mexico City, Mexico


Pityriasis versicolor is a superficial fungal infection of the skin, characterized by pigmentary changes secondary to the colonization of the stratum corneum by a lipophilic dimorphic fungus known as Malassezia sp. Of this genus, 7 species known as the causative agent of pityriasis versicolor, the most frequently isolated species is M. Globosa. This skin disease occurs worldwide but predominates in the tropical, warm, and humid climate. Malassezia sp classified as dimorphic fungi since it behaves as yeast in crops but is capable of producing filaments in its parasitic form. It comes with numerous hyper, hypochromic or erythematous macules, covered with fine flake that converges to form plaques of different morphologies. The most frequent topography is the trunk, the shoulders, and chest in front and back. The diagnosis is clinical, but a mycological study with direct examination must be done. Clusters of rounded or oval yeast clusters are found also fragmented short and thick filaments. The treatment is divided between specific and nonspecific antifungal agents. Recurrences are frequent, up from 60% in the first year and 80% in the second year, so it should be emphasized general measures of treatment.