Extensive pityriasis versicolor lesions in an immunocompetent parking attendant: an occupational disorder?

Abstract

Malassezia yeasts are complex fungi, which are part of the normal skin microbiome, and are responsible of pityriasis versicolor skin condition. We report on a 35-year-old male parking attendant, the patient was describing long-term itchy lesions. Physical examination showed extensive well-delimited hyperpigmented lesions on the neck, the back, the chest and the shoulders, covered by fine scales.
The patient was immunocompetent and all blood test were normal, diagnosis of pityriasis versicolor was supported by traditional mycological detection by microscopy which were sufficient to initiate itraconazole 200 mg daily oral therapy for 1 week. On follow-up 3 weeks later, little remission was noted.
If we consider athlete’s foot mycosis, pityriasis versicolor form in parking attendant should be also regarded, as a possible consequence of occupational weather exposition. Moreover, The professional long and continuous sun exposition could play a role in aggravating the clinical picture, leading to extensive forms of the disease.