539 Successful treatment of extensive Pityriasis Versicolor by Photodynamic Therapy mediated by methylene blue

Pityriasis versicolor (PV) is a common chronic superficial fungal infection of the skin caused by an unusual increased proliferation of Malassezia species in the stratum corneum layer of skin. Malassezia is a yeast that is part of the skin ’s habitual flora and it acquires a pathogenic potential when assuming the mycelial form under the influence of trigger factors including, humidity, immunosuppression, and hyperhidrosis. Systemic therapies are recommended for severe or recalcitrant cases, but they could come with important side ef fects and drug interactions.
Source: Journal of Investigative Dermatology - Category: Dermatology Authors: Tags: Photobiology and Pigmentation Source Type: research