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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.
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.
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]
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 .
Pityriasis versicolor, a skin eruption on the trunk and proximal extremities, usually caused by a fungus Dandruff , historically called Pityriasis capitis Pityriasis amiantacea , condition of the scalp in which thick tenaciously adherent scale infiltrates and surrounds the base of a group of scalp hairs
The skin rash of tinea versicolor (pityriasis versicolor) is also due to infection by this fungus. As the fungus requires fat to grow, [3] it is most common in areas with many sebaceous glands: on the scalp, [4] face, and upper part of the body. When the fungus grows too rapidly, the natural renewal of cells is disturbed, and dandruff appears ...
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.
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.