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Tinea versicolor (also known as dermatomycosis furfuracea, pityriasis versicolor, and tinea flava) [2] is a condition characterized by a skin eruption on the trunk and proximal extremities, hypopigmentation macule in area of sun induced pigmentation. During the winter the pigment becomes reddish brown.
Tinea versicolor (also pityriasis versicolor) is a condition characterized by a skin eruption on the trunk and proximal extremities. [1] The majority of tinea versicolor is caused by the fungus Malassezia globosa , although Malassezia furfur is responsible for a small number of cases.
Malassezia furfur is a fungus that lives on the superficial layers of the dermis.It generally exists as a commensal organism forming a natural part of the human skin microbiota, but it can gain pathogenic capabilities when morphing from a yeast to a hyphal form during its life cycle, through unknown molecular changes. [2]
Malassezia is the sole genus in family Malasseziaceae, which is the only family in order Malasseziales, itself the single member of class Malasseziomycetes. [17]Due to progressive changes in their nomenclature, some confusion exists about the naming and classification of Malassezia yeast species.
Sodium thiosulfate, also spelled sodium thiosulphate, is used as a medication to treat cyanide poisoning, pityriasis versicolor, and to decrease side effects from cisplatin. [3] [4] [5] For cyanide poisoning, it is often used after the medication sodium nitrite and is typically only recommended for severe cases.
Pityriasis versicolor can look like seborrheic dermatitis, pityriasis rosea, pityriasis alba and vitiligo. [7] Some fungal infections such as coccidioidomycosis, histoplasmosis, and blastomycosis can present with fever, cough, and shortness of breath, thereby resembling COVID-19. [28]
Pityriasis lichenoides et varioliformis acuta, a disease of the immune system; Pityriasis rosea, a type of skin rash Pityriasis circinata, Pityriasis rubra pilaris, reddish-orange patches (Latin: rubra) on the skin; Pityriasis versicolor, a skin eruption on the trunk and proximal extremities, usually caused by a fungus
Malassezia sympodialis has been identified conjunction with a number of human skin disorders include pityriasis versicolor, seborrheic dermatitis and dandruff and atopic dermatitis. [5] There have also been reports of M. sympodialis in patients with granulomatous dermatitis. [15]