BACKGROUND: Pytiriasis versicolor is an infectious disease caused by several Malassezia species which has a tendency to become relapsing or chronic. OBJECTIVES: This study was conducted in an attempt to investigate the clinical course of pityriasis versicolor with regard to the number of relapses after a 12-month therapy and correlate this number with isolates of Malassezia species. MATERIAL AND METHODS: 102 patients with clinical and laboratory diagnosis of pityriasis versicolor were monitored for 12 months to investigate the number of relapsing episodes of the disease. RESULTS: After appropriate treatment, pityriasis versicolor presented three types of clinical course: pityriasis versicolor without relapsing episodes (32.35%), relapsing pityriasis versicolor with one to four relapsing episodes (52.94% ) due to associated predisposing factors, and chronic pityriasis versicolor with more than four relapsing episodes (14.70%) with no relation to predisposing factors. CONCLUSIONS: The clinical course of pityriasis versicolor varied according to the number of relapsing episodes of the disease analyzed over a period of 12 months and can be classified as follows: pityriasis versicolor with clinical and mycological clearing, relapsing pityriasis versicolor and chronic pityriasis versicolor.
BACKGROUND: Pytiriasis versicolor is an infectious disease caused by several Malassezia species which has a tendency to become relapsing or chronic. OBJECTIVES: This study was conducted in an attempt to investigate the clinical course of pityriasis versicolor with regard to the number of relapses after a 12-month therapy and correlate this number with isolates of Malassezia species. MATERIAL AND METHODS: 102 patients with clinical and laboratory diagnosis of pityriasis versicolor were monitored for 12 months to investigate the number of relapsing episodes of the disease. RESULTS: After appropriate treatment, pityriasis versicolor presented three types of clinical course: pityriasis versicolor without relapsing episodes (32.35%), relapsing pityriasis versicolor with one to four relapsing episodes (52.94% ) due to associated predisposing factors, and chronic pityriasis versicolor with more than four relapsing episodes (14.70%) with no relation to predisposing factors. CONCLUSIONS: The clinical course of pityriasis versicolor varied according to the number of relapsing episodes of the disease analyzed over a period of 12 months and can be classified as follows: pityriasis versicolor with clinical and mycological clearing, relapsing pityriasis versicolor and chronic pityriasis versicolor.
Authors: John Verrinder Veasey; Ricardo Bertozzi de Avila; Barbara Arruda Fraletti Miguel; Laura Hitomi Muramatu Journal: An Bras Dermatol Date: 2017 May-Jun Impact factor: 1.896
Authors: Shaimaa El-Housiny; Maii Atef Shams Eldeen; Yasmina Ahmed El-Attar; Hoda A Salem; Dalia Attia; Ehab R Bendas; Mohamed A El-Nabarawi Journal: Drug Deliv Date: 2018-11 Impact factor: 6.419
Authors: John Verrinder Veasey; Priscila Marques de Macedo; José Roberto Amorim; Rosane Orofino-Costa Journal: An Bras Dermatol Date: 2021-07-19 Impact factor: 1.896