pityriasis versicolor

Pityriasis Versicolor PITYRIASIS VERSICOLOR Causative Organism Caused by yeast-like micro-organism Pityrosporum ovale (orbiculare) or Malessezia furfur  Becomes pathogenic when its growth is encouraged by increased sebum secretion or depressed immunity  Skin Lesion Morphology Pale, scaling hypopigmented macules develop over the skin of the chest and back in young adults  Fine velvety scales that are not visible but are seen by scraping the lesion. […]